Belden HIRSCHMANN PTN-CSM310-A User manual

User Manual
Installation
Dragon PTN
Central Switching Module PTN-CSM310-A
Central Switching Module PTN-CSM310-A Technical Support
Release 02 09/2019https://hirschmann-support.belden.com

The naming of copyrighted trademarks in this manual, even when not specially indicated, should not
be taken to mean that these names may be considered as free in the sense of the trademark and
tradename protection law and hence that they may be freely used by anyone.
© 2018 Hirschmann Automation and Control GmbH
Manuals and software are protected by copyright. All rights reserved. The copying, reproduction,
translation, conversion into any electronic medium or machine scannable form is not permitted,
either in whole or in part. An exception is the preparation of a backup copy of the software for your
own use.
The performance features described here are binding only if they have been expressly agreed when
the contract was made. This document was produced by Hirschmann Automation and Control GmbH
according to the best of the company's knowledge. Hirschmann reserves the right to change the
contents of this document without prior notice. Hirschmann can give no guarantee in respect of the
correctness or accuracy of the information in this document.
Hirschmann can accept no responsibility for damages, resulting from the use of the network
components or the associated operating software. In addition, we refer to the conditions of use
specified in the license contract.
You can get the latest version of this manual on the Internet at the Hirschmann product site
(www.doc.hirschmann.com).
Hirschmann Automation and Control GmbH
Stuttgarter Str. 45-51
72654 Neckartenzlingen
Germany
2 Central Switching Module PTN-CSM310-A
Release 02 09/2019

Contents
1. INTRODUCTION ........................................................................................................... 5
1.1 General.................................................................................................5
1.2 Manual References...............................................................................6
2. MODULE DESCRIPTION ................................................................................................ 6
2.1 Front Panel ...........................................................................................6
2.1.1 Insert/Remove Module into/from Node ...................................................7
2.1.2 LEDs............................................................................................................7
2.1.3 Reset Button - Factory Default - Reboot Node.......................................... 7
2.1.4 Alphanumeric Display................................................................................8
2.1.5 HiProvision Management Port/Channel .................................................12
2.2 Functional Operation..........................................................................13
2.2.1 Exchange Data with the Outside World ..................................................13
2.2.2 I/O with NSM, PSUs, Interface Modules and Dragon PTN Network .......13
2.2.3 Central Node Switching ...........................................................................14
2.2.4 Management Channel / DCN Channel / HiProvision Interface ...............14
2.2.5 Synchronization / Clock Distribution / Network Timing..........................14
2.2.6 Self-test....................................................................................................16
2.2.7 Alarming...................................................................................................16
2.2.8 Health Monitor ........................................................................................17
2.3 Onboard Interfaces.............................................................................17
2.3.1 Heat Sink..................................................................................................17
2.3.2 Straps .......................................................................................................18
2.3.3 DIP Switches (only on PTN-CSM310-A) ...................................................18
2.3.4 CSM Replacement / Micro SD Memory Card ..........................................18
2.4 CSM Redundancy................................................................................19
2.4.1 General ....................................................................................................19
2.4.2 Redundancy States ..................................................................................19
2.4.3 CSM Switchover.......................................................................................20
2.4.4 Revertive/Non-revertive Behavior ..........................................................20
2.4.5 HiProvision - CSM Connection.................................................................20
2.4.6 Reset Button - Factory Default - Reboot Node........................................20
2.4.7 Micro SD Card ..........................................................................................21
2.5 Add a New Node to a Live Network ....................................................21
3. MODULE SPECIFICATIONS.......................................................................................... 21
3.1 General Specifications ........................................................................21
3.2 Other Specificiations ..........................................................................21
3.3 Ordering Information .........................................................................21
4. ABBREVIATIONS ........................................................................................................ 21
List of figures
Figure 1 Front Panel PTN-CSM310-A............................................................................................. 6
Central Switching Module PTN-CSM310-A 3
Release 02 09/2019

Figure 2 HiProvision Management Connector ............................................................................ 12
Figure 3 Dragon PTN Management............................................................................................. 13
Figure 4 SyncE Clock Recovery .................................................................................................... 15
Figure 5 IEEE 1588v2 ................................................................................................................... 16
Figure 6 PTN-CSM310-A: Side View ............................................................................................ 17
Figure 7 Hardware Edition........................................................................................................... 18
Figure 8 Micro SD Memory Card Interface.................................................................................. 19
List of Tables
Table 1 PTN-CSM310-A Explained................................................................................................. 5
Table 2 Manual References........................................................................................................... 6
Table 3 LED Indications In Boot Operation ................................................................................... 7
Table 4 LED Indications in Normal Operation ............................................................................... 7
Table 5 Display: Reboot Operation ............................................................................................... 9
Table 6 CSM Display: Normal Operation....................................................................................... 9
Table 7 CSM Display: Error List.................................................................................................... 10
Table 8 RJ45 HiProvision Management Connector: Pin Assignments......................................... 12
Table 9 Synchronization / Clock Distribution / Network Timing Overview................................. 14
Table 10 Other Specifications...................................................................................................... 21
4 Central Switching Module PTN-CSM310-A
Release 02 09/2019

1. INTRODUCTION
1.1 General
This document is valid as of Dragon PTN Release 4.0.
This document describes the PTN-CSM310-A Central Switching module (=CSM), which is the
heart of the Dragon PTN nodes. This module provides the main processing within the Dragon
PTN nodes via an Integrated Ethernet Multilayer Switch and onboard Traffic Manager. The
CSM must be plugged into a CSM slot in the node.
The PTN-CSM310-A must be used aggregation nodes. For an overview of the CSM slots and
different aggregation nodes, see the ‘Dragon PTN Bandwidth Overview’ manual Ref. [5] in
Table 2.
Table 1 PTN-CSM310-A Explained
Item
PTN-CSM310-A
Digit1
3 in 310 refers to 3 series
Digit2 and 3
10 in 310 refers to the ability to drive 10 Gbps ports
Nodes Types
Use in aggregation nodes, see Ref. [5] Table 2
Switching
capacity
- Non-blocking capacity for
- 4 x '1 Gbps / 10 Gbps' ports
- 24 x '1 Gbps' ports
Main supported features:
Central switching fabric
Ethernet
(future) Linear Protection switching: ITU G.8031
(future) Ring Protection switching: ERP ITU G.8032v2/Y.1731
MPLS-TP
Label switched paths
Pseudowires
Linear Protection switching
Ring Protection switching: ERP ITU G.8032v2/Y.1731
OAM (Y.1731 / BFD)
Service plane
Virtual switches
L2 / L3 Ethernet features
Synchronization
SyncE
PTP IEEE 1588v2 (=Precision Time Protocol)
Hot Swappable (only relevant for nodes with two redundant CSMs)
Central Switching Module PTN-CSM310-A 5
Release 02 09/2019

1.2 Manual References
Table 2 is an overview of the manuals referred to in this manual. ‘&’ refers to the language
code, ‘*’ refers to the manual issue. All these manuals can be found in the HiProvision
(=Dragon PTN Management System) Help function.
Table 2 Manual References
Ref.
Number
Title
[1]
DRA-DRM 821-&-*
Dragon PTN and HiProvision Operation
[2]
DRA-DRM 801-&-*
Dragon PTN Installation and Operation
[3]
DRA-DRM 802-&-*
Dragon PTN Aggregation Nodes: PTN2210, PTN2206, PTN1104-A, PTN 2209
[4]
DRA-DRM 810-&-*
Dragon PTN General Specifications
[5]
DRA-DRM 828-&-*
Dragon PTN Bandwidth Overview
2. MODULE DESCRIPTION
2.1 Front Panel
Figure 1 Front Panel PTN-CSM310-A
LEDs
Hidden
Reset
Button
Display
HiProvision
Management
Connector
Extractor
Handle
Handle
HiProvision PC
CSM
acti ve/standby
LED
Fastening
Screw
6 Central Switching Module PTN-CSM310-A
Release 02 09/2019

2.1.1 Insert/Remove Module into/from Node
See ‘Dragon PTN Installation and Operation Manual’ Ref.[2].
CAUTION:
1) Do not touch the heat sink when the CSM is in operation, or when removing the CSM
from the node. It can be extremely hot. Risk of getting burned!
2) The CSM could be heavier than expected because of the heat sink.
2.1.2 LEDs
The meaning of the LEDs depends on the mode of operation (= boot or normal) in which the
CSM module currently is running. After plugging in the module or rebooting it, the module
turns into the boot operation, see Table 3. After the module has rebooted successfully, the
module turns into the normal operation, see LEDs in Table 4.
Table 3 LED Indications In Boot Operation
Cycle
PI
PF
FLT
Spare LED
1
x
---
Slow blinking
x (=active CSM)
or
--- (=standby/passive CSM)
2
x
---
Fast blinking
3
x
---
---
x : LED is lit ; --- : LED is not lit; The sub cycle times may vary.
The entire boot cycle time [13] takes approximately 5 minutes.
The node is reachable again when it can be discovered and measured by HiProvision (=Dragon PTN Management System,
see also Ref. [1] in Table 2);
Table 4 LED Indications in Normal Operation
LED
Color
Status
PI (=Power Input)
Not lit, dark
+12V power input to the board not OK
Green
+12V power input to the board OK
PF (=Power Failure)
Not lit, dark
power generation on the board itself is OK
Red
power generation on the board itself is erroneous
FLT (=FauLT)
Not lit, dark
no other fault or error situation, different from PF, is active on the module
Red
a fault or error situation, different from PF, is active on the module
<spare, blank>
Not lit, dark
This CSM is the standby/passive CSM in case of CSM Redundancy
Green
This CSM is the active CSM
CAUTION: At installation time, if the spare LED on both redundant CSMs are lit together,
it means that both CSMs are active at the same time. This is not allowed! Make sure that
both CSMs are plugged in properly.
2.1.3 Reset Button - Factory Default - Reboot Node
This pushbutton is hidden and accessible through a small hole on the front panel. This
button can be pushed with a sharp fine object e.g. a needle, toothpick…
Central Switching Module PTN-CSM310-A 7
Release 02 09/2019

Push short: Warm restart:
Single CSM: Pushing the RESET button forces a warm start of the CSM without
affecting the CSM configuration;
Redundant CSMs: Pushing the RESET button on…
… both CSMs simultaneously force a warm start without affecting the CSM
configuration, the CSM that was active before the reboot becomes the active one
again after the reboot;
… the Standby/Passive CSM forces a warm reboot of this CSM only, the other
active CSM keeps up and running to keep the node alive;
… the Active CSM initiates a switchover. The current active CSM will warm reboot
and the other standby CSM takes over and becomes the active one to keep the
node alive.
Push long: Warm restart + factory default settings:
Single CSM: Pushing the RESET button for at least seven seconds forces a warm start
or reboot of the node and reloads the CSM and its micro SD memory card (see §2.4.7)
with factory default settings. As a result, reloading the CSM configuration from
HiProvision will be necessary;
Redundant CSMs: Pushing the RESET button for at least seven seconds…
…on both CSMs simultaneously affects the entire node. The node reboots and
both CSMs get a new default configuration as described for a single CSM. The left-
hand CSM (=CSM-1) becomes the active one by default;
...in any other way than described above is not relevant because the CSM that
remains active keeps the current configuration and will overwrite the default
configuration of the reset CSM immediately after it has rebooted.
During the (re)boot of a CSM, its LEDs (see §2.1.2) and display (see §2.1.4) will follow a
boot-cycle. If the entire node boots (single CSM, or both redundant CSMs together), the
node will be reachable again three minutes after the reset has been released. The entire
(re)boot will be finished approximately five minutes after the reset button has been
released. The node is reachable again when it can be discovered and measured by
HiProvision;
CAUTION: A reboot of a single CSM or active CSM (with redundant CSMs) will affect all
communication through this node.
2.1.4 Alphanumeric Display
The 4-character alphanumeric display provides some basic information on the node. The
display shows information during reboot of the node and during normal operation.
a. During Reboot of the Node
The display reboot cycle takes approximately 20 seconds whereas the reboot of the entire
PTN-CSM310-A takes approximately 5 minutes. After the display reboot cycle, the display
returns to the normal operation cycle, see next paragraph.
8 Central Switching Module PTN-CSM310-A
Release 02 09/2019

Table 5 Display: Reboot Operation
Display
Description
Normal (re)boot, boot cycle
Boot
1st step of the display reboot cycle.
Ld1, Ld2,
Ld1t, Ld2t
2nd step of the display reboot cycle. The CSM can have two firmware loads (active and spare load)
onboard that have been uploaded via HiProvision. If load1 is active, load2 is the spare load and vice
versa. This display cycle shows which firmware load is used to boot the CSM:
Ld1: Load1 is active and used by the CSM during this boot;
Ld2: Load2 is active and used by the CSM during this boot;
Ld1t: The CSM boots with testload1 (=not the active one). This is a result of a commit in the firmware
upgrade phase via HiProvision. If the user accepts this load in HiProvision within 20 minutes, this test
load becomes the active one. If not, the CSM will again reboot with load2 and indicate Ld2;
Ld2t: The CSM boots with testload2 (=not the active one). This is a result of a commit in the firmware
upgrade phase via HiProvision. If the user accepts this load in HiProvision within 20 minutes, this test
load becomes the active one. If not, the CSM will again reboot with load1 and indicate Ld1;
Init
3rd step of the display reboot cycle.
FAC RST
(optional)
This cycle is only shown if a factory reset has been initiated (see §2.1.3).
Erroneous (re)boot
DDR!
Indicates a hardware failure on the CSM module. Replace the CSM (§2.3.4).
RBT!
Indicates a hardware failure on the CSM module. Replace the CSM (§2.3.4).
NLD!
Indicates an invalid load. Reboot the node. If the problem persists, replace the CSM (§(§2.3.4).
CLD!
Indicates a corrupt load. Reboot the node. If the problem persists, replace the CSM (§(§2.3.4).
b. During Normal Operation
Table 6 CSM Display: Normal Operation
Display
Description
<Redundancy State>
Indicates the redundancy (=RDST) state of the CSM. In case of a single CSM (or non-
redundant CSM), the value will always be RDST ACT.
Possible values with redundant CSMs:
- RDST ACT:
Indicates the active CSM. This CSM is currently managing and monitoring all the activity
and connections in the node. The active NSM is also indicated via the NSM LEDs, see Ref.
[3] in Table 2.
- RDST STB:
Indicates the redundant CSM which is in hot-standby mode. This CSM is ready, doing
nothing and just waiting for a switchover to occur, which can be initiated either
automatically or manually, see also §2.4.
- RDST PAS:
Indicates the redundant CSM which is in passive mode. This CSM has started up, without
(serious) errors during the self-test. The CSM software is operational but the node
configuration data on this CSM has not been synchronized yet with the configuration
data on the active CSM. The RDST PAS mode will shortly turn into the RDST STB mode.
- RDST SWO:
Central Switching Module PTN-CSM310-A 9
Release 02 09/2019

Display
Description
Indicates the switchover state, only possible on the active CSM, after a switchover on
user request either via HiProvision or by pushing the NSM switchover button, the state is
only briefly displayed.
IP <IP Address>
This is the 'front IP address' or the IP address of the HiProvision management port on the
front panel, which is in the range [172.16.0.1 -> 172.20.100.209]. This dedicated IP
address depends on the node number and the slot in which the CSM has been plugged
(CSM-1 or CSM-2).
If two redundant CSMs are plugged into the node, both CSMs have an IP address in a
different /28 subnet. See §2.4.5 to find out which IP addresses must be used in the
connected HiProvision PC.
Note: For security reasons:
- this port is by default up but can be disabled in HiProvision;
- it can be configured in HiProvision how many times ('n') the IP address must scroll on
the CSM display after plugging in the management cable. By default, it is displayed
forever in every display cycle.
Note: This front IP address can be changed in HiProvision, see §2.4.5.
VERS <Load Version>
Example: VERS 1.2.9
NODE <Node Number>
Indicates the node number (of the own node) that has been configured via the rotary DIP
switches on the NSM. Example: NODE 830.
NODE 9001 indicates a problem with the node number. See NODENUMBER INVALID in
error list in Table 7.
SHDN
is only shown on the display when a reboot has been initiated
ERR <Error list>
(see Table 7)
Everything is fine, no errors:
OK
errors active: Only the active CSM displays errors. Example with cable faults (S indicates
the slot number, I indicates the interface or port number):
ERR <error 1> , ... , <error n>
ERR CBLF S1 I1 , CBLF S1 I2
Table 7 CSM Display: Error List
Display
Description
Curative Action
CBLF S<x> P<y>
Indicates a cable fault in interface slot <x> on
port <y>. Example: CBLF S1 P1
Check the cabling in that slot or port and
reconnect cables where necessary.
CSM<x> FW1
Can only occur on redundant CSMs. If it occurs,
it is displayed on both CSMs. It indicates that the
firmware version on CSM1 differs from the
version on CSM2. (x = 1 or 2)
Make sure that both CSMs run on the same
firmware version. If the mismatch remains, there
will be no CSM Redundancy. The last active CSM
will remain active, the other CSM will not become
standby but remains passive.
CSM<x> HW1
Switch error on CSM<x> (x = 1 or 2).
Replace the CSM (§2.3.4).
CSM<x> HW2
Clock distribution error on CSM<x> (x = 1 or 2).
Replace the CSM (§2.3.4).
CSM<x> HW3
SD Memory card error on CSM<x> (x = 1 or 2).
The CSM stays fully operational while the error
is active.
The SD card replacement (see below) is not urgent
and can be postponed until a later maintenance
timeframe.
Single CSM: Pull out the CSM (the node goes
down), and replace the broken SD card. Plug in
the CSM again.
Redundant CSMs: If the broken SD card is in the
active CSM, switch over first to make this CSM
10 Central Switching Module PTN-CSM310-A
Release 02 09/2019

Display
Description
Curative Action
standby. Pull out the standby CSM, replace the SD
card and plug in the CSM again.
In both cases above, the new SD card will get a
copy of the current CSM configuration after CSM
insertion.
CSM<x> HW4
Processor error on CSM<x> (x = 1 or 2).
Replace the CSM (§2.3.4).
CSM<x> HW5
Flash memory error on CSM<x> (x = 1 or 2).
Replace the CSM (§2.3.4).
CSM<x> HW6
Sync persistent CSM configuration error on
CSM<x> (x = 1 or 2). Active CSM cannot reach or
sync the standby CSM.
Replace the standby CSM (§2.3.4).
CSM<x> TEMP
High temperature on CSM<x> (x = 1 or 2).
Provide enough room below and above the node
for ventilation as described in the installation
manual in Ref. [2] in Table 2.
MULTIPLE
NEIGHBORS WAN
Multiple neighbors detected on WAN link. The
network discovery function in Dragon PTN
expects one-to-one WAN links in which each
node detects only one neighbor on the other
side of the link. A possible badly configured
switch or router is on the WAN link, with access
to multiple nodes or neighbors.
Verify your WAN links, and make sure that a
possible switch or router on that WAN link has
been configured properly to assure a one-to-one
WAN link.
NODE MAC
CONFLICT
Node MAC Conflict. Problem can occur with
CSM redundancy when the active CSM (e.g
CSM1) has been removed from the node, after
swapping over to the standby CSM (e.g. CSM2)
first. When the CSM1 has been replaced with a
new CSM3, the notification on the display
remains.
No urgent actions are required. CSM Redundancy
remains operational. The notification on the
display wil disappear after rebooting the node.
NODENUMBER
MISMATCH
Indicates a mismatch between the configured
node number on the NSM and HiProvision.
Make sure that both node numbers on the NSM
and HiProvision match.
NSM
BACKPLANETYPE
INVALID
NSM backplane type invalid
Probably the NSM is defect. Replace the NSM.
NSM
BACKPLANETYPE
MISMATCH
NSM backplane type mismatch. The
configuration on the CSM is not compatible with
the node backplane. E.g. the CSM was initially
configured in another node type (e.g. PTN2210)
than the node type in which it is intalled now
(e.g. PTN2206).
Clear the CSM (=factory default) via the hidden
reset button (§2.1.3) and reconfigure it in
HiProvision.
NSM ERROR
NSM not reachable.
Make sure the NSM is plugged in correctly. If it is
still not reachable, replace the NSM.
NSM NODENUMBER
INVALID
The NSM cannot read its configured node
number or its node number is configured
beyond the valid node number range of 0001 to
8999. E.g. node number 9307 generates this
error. In case of this error, 'NODE 9001' will be
displayed as in the normal cycle. 9001 is a
special node number to indicate node number
problems.
Verify the configured node number and make sure
to have it configured in the valid range of 0001 to
8999. If it is in the valid range, replace the NSM.
PSU<x> INPUT
PSU<x> input voltage missing (x = 1 or 2).
Make sure that the PSU<x> is plugged in correctly
and powered up. If the problem persists, replace
PSU<x>.
PSU<x> OUTPUT
PSU<x> output voltage missing (x = 1 or 2).
PSU<x> TEMP
PSU<x> temperature out of range (x = 1 or 2).
POE<x> FAILURE
PoE PSU<x> (Power over Ethernet) has not
Check the input voltage of the PoE PSU<x>.
Central Switching Module PTN-CSM310-A 11
Release 02 09/2019

Display
Description
Curative Action
enough input voltage to deliver the normal PoE
power (x = 1 or 2).
S<x> IFM HWERR
The module in slot S<x> has a hardware error.
Example: S4 IFM HWERR
Replace the Interface Module.
S<x> IFM
MISMATCH
The interface slot <x> has a module type
mismatch. The module plugged in in slot <x> in
this node, differs from the HiProvision
configuration in that node slot <x>.
Example: S3 IFM MISMATCH
Make sure that the configured module in
HiProvision is the same as the module plugged in
in that specific slot.
S<x> IFM TEMP
High temperature on the Interface Module in
interface slot<x> (x = 1 or 2). Example: S4 IFM
TEMP
Make sure that the node has enough room below
and above the node for ventilation as described in
the installation manual in Ref. [2] in Table 2.
2.1.5 HiProvision Management Port/Channel
a. General
This RJ45 Ethernet connector must be used to manage the Dragon PTN network via
HiProvision (=Dragon PTN Management System). This connector allows HiProvision to access
the Dragon PTN management or DCN channel, which is built up dynamically between all the
connected nodes within the network.
NOTE: DCN = Data Communication Network
NOTE: The management port can be disabled via HiProvision for security reasons, see Ref.
[1] in Table 2. The management port is by default up.
Table 8 RJ45 HiProvision Management Connector: Pin Assignments
Pin No.
Signal 100/100Base-T
Signal 1000Base-T
1
Transmit output (+)
DA+
2
Transmit output (-)
DA-
3
Receive input (+)
DB+
4
---
DC+
5
---
DC-
6
Receive input (-)
DB-
7
---
DD+
8
---
DD-
Figure 2 HiProvision Management Connector
12 Central Switching Module PTN-CSM310-A
Release 02 09/2019

Figure 3 Dragon PTN Management
b. HiProvision - CSM Connection Scenarios
There are multiple connection scenarios possible between the HiProvision PC and the CSM
(or Dragon PTN network).
Direct connection;
Connection via switch, router;
Connection with CSM Redundancy;
Connection with HiProvision Redundancy;
Connection with Entry Point Redundancy.
Depending on the connection scenario, the configuration differs and IP addresses must be
configured in different places.
All these connection scenarios are described in detail in the 'HiProvision and Operation
manual' Ref. [1] in Table 2. In this manual, verify following chapters:
HiProvision: Discover and Approve the Dragon PTN Network Topology (DCN);
HiProvision Connectivity Redundancy: Use Cases.
2.2 Functional Operation
2.2.1 Exchange Data with the Outside World
The node exchanges services data (Ethernet, MPLS-TP, E1/T1, SHDSL, C37.94, Serial data…)
with the outside world via the Interface Modules that are plugged into the Dragon PTN
node. This means that an Dragon PTN node communicates with other Dragon PTN nodes via
its Interface Modules, not via the CSM. The only data to enter/leave the front panel of the
CSM is the management data exchanged with HiProvision.
2.2.2 I/O with NSM, PSUs, Interface Modules and Dragon PTN Network
The active CSM processes status & control data between the NSM, PSUs, Interface Modules,
backup CSM and the Dragon PTN network via the node's backplane. The active CSM
communicates this and its own status & control data to HiProvision.
Furthermore, the active CSM controls the flow of user data by switching MPLS-TP packets
between the Dragon PTN network and the Interface Modules in its node. The Interface
DragonPTNNetwork
HiProvision PC
(=Dragon PTN Management)Dynamically built
Management Channel =
DCN Channel
Central Switching Module PTN-CSM310-A 13
Release 02 09/2019

Modules are connected to the active CSM in a star configuration resulting in an individual
data bus for each Interface Module. Data transfer is full duplex. See also §2.2.3.
2.2.3 Central Node Switching
The switch on the CSM is non-blocking and has following data bus:
PTN-CSM310-A:
4 x '1 Gbps / 10 Gbps' ports
24 x '1 Gbps' ports
Which node slot supports which speeds and bandwidths is described in the ‘Dragon PTN
Bandwidth Overview’ manual, see Ref. [5] in Table 2.
The onboard switch supports the features described in §1.1.
2.2.4 Management Channel / DCN Channel / HiProvision Interface
The management or DCN channel (=Data Communication Network) is a dedicated channel
needed by HiProvision to configure, monitor and manage the Dragon PTN network.
The management channel is built up dynamically during the HiProvision Discovery phase.
This channel is a collection of inter-node MPLS-TP WAN connections. All the Dragon PTN
management packets travelling over the Dragon PTN network will have a high priority QoS
(=Quality of Service) to ensure that these packets always reach their destination.
NOTE: See also §2.1.5, for the Discovery function, see Ref.[1] in Table 2;
2.2.5 Synchronization / Clock Distribution / Network Timing
The Dragon PTN network provides a number of mechanisms to perform synchronization /
clock distribution / network timing. The CSM makes sure that all the Interface Modules
included in the node are synchronized. See the table below for an overview of the
mechanisms.
Table 9 Synchronization / Clock Distribution / Network Timing Overview
Mechanism
Domain
What is
synchronized?
Purpose
SyncE
Network wide
Clock Frequency
Distribute a synchronous clock, based on a PRC (=Primary
Reference Clock), network wide over all the nodes that need it.
PTP IEEE 1588v2
Network wide
Timestamping
A protocol to synchronize real-time clocks (timestamping) in
Dragon PTN network elements and/or connected devices.
a. SyncE (=Synchronous Ethernet)
SyncE distributes a synchronous clock, based on a PRC, network wide over all the nodes that
need such a synchronous signal. The PRC is a very stable high quality clock that can be used
as a reference for network wide clock distribution.
In HiProvision, an operator can configure (see manual Ref.[1]) a clock distribution tree with
the participating nodes and Interface Modules together with the necessary clock priorities. A
14 Central Switching Module PTN-CSM310-A
Release 02 09/2019

clock is recovered from an incoming data signal on an Interface Module interface port (e.g.
Data1 on a PTN-4-GC-LW module,) and forwarded to the CSM via the backplane, see figure
below. The CSM cleans up and redistributes this clock over the entire node to all the
interface slots. If multiple recovered clocks are available in a node, the CSM will select the
best available clock.
How the best available clock is determined must be configured in HiProvision:
Ethernet services: the best available clock can be determined dynamically via SSMs
(=Sync Status Message) or statically via a dedicated interface port. SSMs are transmitted
to downstream neighbor nodes to report the stability and accuracy of its distributed
clock;
Circuit Emulation Services: the best available clock must be assigned statically to a
dedicated interface port;
NOTE: The Interface Module manual indicates whether an Interface Module port can
participate in SyncE;
NOTE: The CSM management port does not participate in the SyncE clock distribution;
NOTE: If no distributed clock is available in a node, the node falls back to the local clock
oscillator on the CSM;
Figure 4 SyncE Clock Recovery
N
S
M
P
S
U
-
1
P
S
U
-
2
I
F
M
-
1
I
F
M
-
2
I
F
M
-
3
I
F
M
-
4
I
F
M
-
5
I
F
M
-
6
I
F
M
-
7
I
F
M
-
8
I
F
M
-
9
C
S
M
-
1
C
S
M
-
2
4-GC-LW
Data1 Recovered
Clock
(SyncE)
CSM310-A
Distributed
clock
Data1 Data2
Data2
4-E1-L
Data1
Recovered clock
from Data1 Distributed clock
data switching
clock s el ecti on &
redistribution
I
F
M
-
10
Central Switching Module PTN-CSM310-A 15
Release 02 09/2019

b. PTP IEEE 1588v2 (=Precision Time Protocol)
The Precision Time Protocol (=PTP), as defined in IEEE 1588v2, is a protocol that manages
the distribution of a synchronous timestamp clock (micro-second accuracy), network wide
between an external grandmaster clock and its slaves or substations. The CSM verifies that
all the Interface Modules in the node have the same node-internal timestamp. If not, the
CSM will raise an alarm. This node-internal timestamp must be the same on each Interface
Module to guarantee that the calculated node-traverse time needed for IEEE 1588
messages, will be consistent and correct through the entire node. More detailed info can be
found in Ref.[1] in Table 2.
NOTE: The figure below is an example with the PTN-CSM310-A.
Figure 5 IEEE 1588v2
2.2.6 Self-test
When switching on the supply voltage, the node goes through a self-test, before switching
itself into the network. During this test, the main function blocks are tested e.g. processor,
memories etc.…
2.2.7 Alarming
a. Hardware Device Alarms
The CSM supervises all the hardware in the node and generates the necessary device alarms
when something goes wrong in the node. These alarms are collected by HiProvision. It can
be configured in HiProvision via the Device Settings to output one or more of these alarms to
the digital output contacts (=DO) on the NSM in the node, see also [1], [3] in Table 2.
b. SNMP Traps (future)
Every module in an Dragon PTN node, either NSM, CSM or Interface Module has a MIB
onboard. Every parameter in each MIB can be configured for alarming. The CSM will monitor
all the MIBs in its node. If a parameter value changes somewhere in the node, the CSM will
send out an (SNMP) trap via the management or DCN channel on the network. HiProvision
MPLS-TP
Dragon PTN
Grandmaster
Master Slaves
Boundary Clock Ordinary Clock
Ethernet Service: IEEE 1588v2
4-GC-LW
Ethernet
Ethernet
Ethernet
Transparent Clock Transparent Clock
16 Central Switching Module PTN-CSM310-A
Release 02 09/2019

decides whether the captured (SNMP) trap results in an alarm or not. All the alarms will be
visualized by HiProvision.
E.g. the user can configure the minimum and maximum value of a temperature parameter
on an Interface Module. If the temperature exceeds the allowed configured temperature
range, HiProvision will show a temperature alarm for this module on that specific node.
2.2.8 Health Monitor
If you have problems with a specific node, a service in a node, responsiveness of a node,
possible traffic loss is a node, it is always a good idea to verifiy the Health Monitor in
HiProvision (See also Ref. [1] in Table 2).
This monitor shows more info on the CSM(s) usage in a node:
CPU usage;
Memory usage;
Disk (=Flash, SD memory card) usage.
2.3 Onboard Interfaces
Figure 6 PTN-CSM310-A: Side View
2.3.1 Heat Sink
A heat sink is required for the natural cooling of the CSM module. Both sides of the CSM
module have a heat sink attached. A heat sink can reach a high temperature during
operation.
CAUTION: Do not touch the heat sink when the CSM is in operation, or when removing
the CSM from the node. It can be extremely hot. Risk of getting burned!
Micro SD Card
Interface Heat Sink
Extractor
handle
Hardware
Edition
Hidden Reset
Button
Lock
Unlock
Central Switching Module PTN-CSM310-A 17
Release 02 09/2019

2.3.2 Straps
No user relevant straps.
2.3.3 DIP Switches (only on PTN-CSM310-A)
a. Hardware Edition
DIP switch ‘S1’ indicates the hardware edition of the CSM in a binary way, using six bits. This
edition has been factory set and must not be changed. It can also be read out via
HiProvision. A switch in the up position indicates a logical ‘1’.
Example: Setting ‘000101’ (bin) indicates hardware edition ‘5’ (dec).
Figure 7 Hardware Edition
2.3.4 CSM Replacement / Micro SD Memory Card
The SD card has two purposes:
Allow the easy and fast replacement of a broken CSM in the live network without further
HiProvision interaction. The SD card on the broken CSM always holds the latest node
configuration downloaded via HiProvision.
Offer a container for ‘network database’ backups. When a backup of the database to this
node has been initiated in HiProvision via ‘network backups’, HiProvision will store this
database on this SD card. See also Ref. [1] in Table 2.
CAUTION:
The SD card from a broken CSM can be reused in the new replacing CSM, provided that
both CSMs have the same firmware version and are used in the same node.
This SD card interface has an SD card plugged in by default. Every time HiProvision loads a
new or updated configuration into the node, this SD card will be updated. As a result, this
SD card always holds the latest node configuration.
Follow the steps below to replace a broken CSM with a new CSM:
Remove the SD card from the new CSM by pushing down and releasing the SD card;
In case of CSM redundancy: If the active CSM has to be replaced, switch over first to
make this CSM the standby CSM;
Remove the broken CSM (=hot-swappable) from the powered node;
Remove the SD card from the broken CSM and insert it into the new CSM;
Plug in the new CSM into the node. The node will reboot with the new CSM, which
already has the correct node configuration from the SD card. A new load of the node via
HiProvision will not be necessary.
MSB LSB
‘1’
6 5 4 3 2 1
‘0’
18 Central Switching Module PTN-CSM310-A
Release 02 09/2019

Figure 8 Micro SD Memory Card Interface
NOTE: This SD card is neither required nor essential for the CSM to operate, but it makes a
possible CSM replacement in the future a lot easier and faster.
NOTE: If the reset button has been pushed at least for seven seconds (see §2.1.3), the
latest configuration on the SD card will be replaced with the factory default settings.
2.4 CSM Redundancy
2.4.1 General
Prerequisite: both CSMs must have the same firmware version.
All the Dragon PTN node types, except for the Dragon PTN node PTN1104 , can be equipped
with redundant CSM modules.
CSM Redundancy means that two CSMs are installed in the node. One CSM will be the active
one while the other CSM will be the redundant one. Both CSMs will contain the complete
configuration data of all connections that are configured in that node.
CSM Redundancy provides a higher availability of the services through a node if one CSM
should fail. If one fails, the redundant hot-standby CSM will take over automatically to keep
the node and all its services alive (with a minimal service interrupt).
In normal operation one CSM actively controls the backplane and Interface Modules,
whereas the other CSM is in standby mode. Both CSMs have a dedicated heartbeat
mechanism to control which CSM is active and which CSM is in standby mode.
2.4.2 Redundancy States
A CSM can be in three different redundancy states: ACT (=Active), STB (=Standby) or PAS
(=Passive). The current state of each CSM can be viewed on the CSM display (see §2.1.4) or
on the LEDs of the NSM.
CAUTION: At installation time, if the spare LED on both redundant CSMs are lit together,
it means that both CSMs are active at the same time. This is not allowed! Make sure that
both CSMs are plugged in properly.
Micro SD
Memory Card
Micro SD
Memory Card
Interface
Central Switching Module PTN-CSM310-A 19
Release 02 09/2019

2.4.3 CSM Switchover
An automatic switchover from the active CSM (=ACT) to the standby CSM (=STB) occurs
when:
The active CSM gets broken;
The active CSM is pulled out from the node. It is strongly advised not to pull out the
active CSM intentionally! When a CSM has to be pulled out, make sure it is in
standby/passive mode first via switching-over.
A manual switchover from the active CSM (=ACT) to the standby CSM (=STB) can be done
via:
The hidden CSM1/2 switchover button on the NSM module has been pushed for
approximately 4 seconds until the other CSM becomes active, indicated by the LEDs on
the NSM;
The hidden reset button on the active CSM has been pushed (see also §2.1.3);
HiProvision, see Ref. [1] Table 2;
NOTE: With CSM redundancy, a switchover is only possible when both CSMs have the
same firmware version and one CSM is 'active' and the other CSM is 'standby'.
When a switchover occurs, the connections or services going through that node will be
interrupted shortly.
CAUTION: In case of CSM redundancy, never pull out or reset the active CSM. If you want
to pull out or reset the active CSM (e.g. CSM1), switchover first via HiProvision or the
CSM1/2 button on the NSM. As a result, the intended CSM becomes standby and can be
pulled out or reset.
2.4.4 Revertive/Non-revertive Behavior
CSM Redundancy is non-revertive: once a switchover of the CSM has occurred, the new
active CSM stays active until a manual switchover or switchover caused by an error occurs.
No automatic switchback to the original CSM will occur when this one returns back up and
running after an error.
2.4.5 HiProvision - CSM Connection
CAUTION: When using CSM Redundancy, HiProvision must always be connected to both
CSMs (=each CSM having its own management cable), either directly or via a
router/switch.
For more connection scenarios, see §2.1.5b
2.4.6 Reset Button - Factory Default - Reboot Node
See §2.1.3.
20 Central Switching Module PTN-CSM310-A
Release 02 09/2019