Extreme Networks Virtual Chassis User manual

Extreme Networks, Inc.
10460 BandleyDrive
Cupertino, California 95014
[phone]
http://www.extremenetworks.com
Summit Virtual Chassis
Design and Installation
Guide
Published:June1998
Part No: 120031-00 rev.01
virtchas.book Page i Friday, May 29, 1998 10:08 AM

ii
Copyright © Extreme Networks, Inc., 1998. All rights reserved. No part of this documentation may be
reproduced in any form or by any means or used to make any derivative work (such as translation,
transformation, or adaptation) without permission from Extreme Networks, Inc.
Extreme Networks, ExtremeWare, Summit, SummitLink,Virtual Chassis and the Extreme Networks
logo are trademarks of Extreme Networks.
All other brand and product names are registered trademarks or trademarks of their respective
holders.
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SUMMIT VIRTUAL CHASSIS DESIGN AND INSTALLATION GUIDE 1
Summit Virtual Chassis Design
and Installation Guide
The Summit™ Virtual Chassis™is a high-performance, low-cost external backplane that
connects up to eight stacked or distributed Summit switches into one cohesive system.
The Summit Virtual Chassis comes with eight SummitLink™backplane channels.
SUMMARY OF FEATURES
Features of the Summit Virtual Chassis include the following:
•Increased port density
•Policy-based Quality of Service (QoS)
•Load-sharing links
•Extensive fault-tolerant capabilities
—Redundant power supplies
—Hot-swappable switches
•Hot-swappable Virtual Chassis
—Environmental sensors
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2 SUMMIT VIRTUAL CHASSIS DESIGN AND INSTALLATION GUIDE
SUMMARY OF FEATURES
INCREASED PORT DENSITY
The Summit Virtual Chassis can be combined with any member of the Summit switch
family. When four Summit Virtual Chassis are used with eight Summit1 switches, up to
32 Gigabit Ethernet ports can be connected using the Virtual Chassis external backplane.
When two Virtual Chassis are combined with eight Summit48 switches, up to 384
10/100 Mbps Ethernet ports can be connected. A single Virtual Chassis connected to
eight Summit3 switches provides 192 10/100 Mbps ports.
POLICY-BASED QUALITY OF SERVICE (QOS)
Policy-based QoS is a feature of the Summit switch family. QoS profiles are defined in
the Summit switch, and allow you to specify priority, and minimum and maximum
bandwidth per traffic group. You can define QoS traffic groups based on the following:
•Internet Protocol (IP) destination address
•Virtual LAN (VLAN) (including IP subnet or protocol)
•Media Access Control (MAC) destination address
•Physical source port
•802.1p prioritization
ExtremeWare™software running on the Summit switch maps the QoS profiles into
queues on each port of the switch. When up to eight Summit switches are connected to
a Summit Virtual Chassis, four interconnecting queues for each switch (totaling 32
queues) are allocated on each Summit Virtual Chassis link.
LOAD-SHARING LINKS
For increased fault tolerance, throughput, and bandwidth, two- or 4four-port
load-sharing links can be used to create parallel paths between Summit switches and
two or four Summit Virtual Chassis.
Figure 1 shows two Summit1 switches connected using four parallel paths to four
Summit Virtual Chassis. The result is a full mesh of parallel paths between each Summit
switch and the Summit Virtual Chassis.
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SUMMIT VIRTUAL CHASSIS DESIGN AND INSTALLATION GUIDE 3
SUMMARY OF FEATURES
Figure 1: Four-port load-sharing links with the Summit Virtual Chassis
Figure 2 shows two Summit48 switches using two parallel paths to two Summit Virtual
Chassis. The result is a full mesh of parallel paths.
Figure 2: Two-port load-sharing links with the Summit Virtual Chassis
Using load-sharing links, the Summit Virtual Chassis distributes traffic to and from each
Summit switch on any of the parallel connected paths. This results in faster data
throughput among the switches connected to the Summit Virtual Chassis.
Switch #1
4-port
load-sharing groups
Switch #8
Switch #1
2-port
load-sharing groups
Switch #8
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4 SUMMIT VIRTUAL CHASSIS DESIGN AND INSTALLATION GUIDE
SUMMARY OF FEATURES
Another advantage of parallel paths between Summit switches and the Summit Virtual
Chassis is that the allocation of traffic between connections is transparent to the address
tables and routing protocols. If a connection is broken, traffic is redirected to a parallel
path without causing an address table or routing table update.
EXTENSIVE FAULT TOLERANT CAPABILITIES
The Summit Virtual Chassis includes a number of fault tolerant capabilities, including
the following:
—Redundant power supplies
—Hot-swappable switches
—Hot-swappable Virtual Chassis
—Environmental sensors
REDUNDANT POWER SUPPLIES
The Summit Virtual Chassis is equipped with two internal load-sharing power supplies.
A single power supply provides power to the Summit Virtual Chassis. Combined, the
two power supplies provide load-balancing to increase the longevity of each supply,
and deliver uninterrupted service in the event of a failure.
In addition to the two internal power supplies, the Summit Virtual Chassis comes with
dual external redundant power supplies (RPS) that deliver power for up to two Summit
switches in the stack. DC cables are provided to connect each RPS output to a single
Summit switch.
The Summit Virtual Chassis has two power sockets. The upper power socket provides
power to one of the Summit Virtual Chassis internal power supplies. It also provides
backup power to the Summit switch that is connected to the Summit Virtual Chassis
using the upper RPS port.
The lower power socket provides power to the second Summit Virtual Chassis internal
power supply, and to the Summit switch that is connected to the Summit Virtual
Chassis using the lower RPS port.
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SUMMIT VIRTUAL CHASSIS DESIGN AND INSTALLATION GUIDE 5
SUMMIT VIRTUAL CHASSIS FRONT VIEW
HOT-SWAPPING SUMMIT SWITCHES AND SUMMIT VIRTUAL CHASSIS UNITS
You can easily add, remove, and replace Summit switches that are interconnected with
the Summit Virtual Chassis without affecting users linked to other switches in the stack.
No actions are required prior to disconnecting a Summit switch, removing it from the
stack, adding a new switch to the stack, or replacing a switch. Other switches connected
to Summit Virtual Chassis continue to operate normally. When a switch is replaced or
added, users connected to the new switch can automatically communicate with devices
attached to other switches in the stack.
When a stack of Summit switches are connected to two or more Summit Virtual Chassis,
you can hot-swap one of the Virtual Chassis without affecting communication between
devices attached to the stack. If a system LED on a Summit Virtual Chassis indicates a
failure, the Summit Virtual Chassis can be disconnected, removed from the stack and
replaced, while remaining transparent to all users. All traffic continues to pass through
the operational Summit Virtual Chassis while the failed unit is replaced.
ENVIRONMENTAL SENSORS
The Summit Virtual Chassis is equipped with sensors that monitor the internal
temperature and send an alert if the temperature exceeds 60 degrees centigrade.
Fans in the Summit Virtual Chassis are built with a tachometer sensor that detects a fan
failure if the rotation speed decreases by 20%. This allows you to make necessary
repairs to the Summit Virtual Chassis before a failure occurs.
SUMMIT VIRTUAL CHASSIS FRONT VIEW
Figure 3 shows the front panel view of the Summit Virtual Chassis.
Figure 3: Summit Virtual Chassis front panel
Unit status LEDs
Port status
LEDs SummitLink ports
SummitLink ports
87654321
12345678
12345678
12345678
AMBER
AMBER
GREEN
AMBER
TX RX
LINK
ACTIVITY
TX ACTIVITY
RX ACTIVITY
LINK OK
LINK ERROR
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6 SUMMIT VIRTUAL CHASSIS DESIGN AND INSTALLATION GUIDE
SUMMIT VIRTUAL CHASSIS FRONT VIEW
PORTS
The Summit Virtual Chassis has eight SummitLink ports. All the ports use SC
connectors and support the same media and distances as 1000BASE-SX over
50/125 micron or 62.5/125 micron fiber-optic cable. The maximum cable length between
a Summit switch and the Summit Virtual Chassis is 260 meters. SummitLink ports are
designed for connecting the Summit Virtual Chassis only to a Summit switch.
SummitLink ports do not support connections to any other device type.
LEDS
Table 1 describes the LED behavior on the Summit Virtual Chassis.
Table 1: Summit Virtual Chassis LEDs
Unit Status
LEDs Color Indicates
PS1 Green
Off Power supply #1 of the Summit Virtual Chassis is operating. The Summit Virtual Chassis is indicating a power supply
failure.
RPS1 Green The first redundant power supply (RPS) of the Summit Virtual
Chassis is powering a Summit switch.
PS2 Green
Off Power supply #2 of the Summit Virtual Chassis is operating. The Summit Virtual Chassis is indicating a power supply
failure.
RPS2 Green The second RPS of the Summit Virtual Chassis is powering a
Summit switch.
OVER TEMP Off
Yellow The Summit Virtual Chassis temperature is normal. The Summit Virtual Chassis is indicating an overheat condition
(>60 degrees Celsius).
FAN FAIL Off
Yellow The Summit Virtual Chassis fan is operating properly. The Summit Virtual Chassis fan speed has slowed to 80% or
less of full rotational speed, and should be replaced.
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SUMMIT VIRTUAL CHASSIS DESIGN AND INSTALLATION GUIDE 7
SUMMIT VIRTUAL CHASSIS REAR VIEW
SUMMIT VIRTUAL CHASSIS REAR VIEW
Figure 4 shows the rear panel view of the Summit Virtual Chassis.
Figure 4: Summit Virtual Chassis rear panel
POWER SOCKETS
The Summit Virtual Chassis has two power sockets. The upper power socket provides
power to one of the internal Summit Virtual Chassis power supplies. It also provides
redundant load-shared power to the Summit switch connected to the Summit Virtual
Chassis using RPS port A.
SummitLink Port Status LEDs
Link Green
Yellow
Off
Link is present.
Link error.
No link, or either the Summit Virtual Chassis or the Summit
switch attached to this port is powered off.
TX Activity Yellow
Off Frames are being transmitted on this port. No transmit activity detected on this port.
RX Activity Yellow
Off Frames are being received on this port. No receive activity detected on this port.
Table 1: Summit Virtual Chassis LEDs (continued)
Unit Status
LEDs Color Indicates
RPS port APower socket A
RPS port BPower socket B
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8 SUMMIT VIRTUAL CHASSIS DESIGN AND INSTALLATION GUIDE
SUMMIT VIRTUAL CHASSIS REAR VIEW
The lower power socket provides power to the second internal power supply, and to the
Summit switch connected to the Summit Virtual Chassis using RPS port B.
The upper power socket powers only the upper RPS port. The lower power
socket powers only the lower RPS port.
If you want to distribute the input AC power source across multiple, individual circuit
breakers, you must plug the Summit switch AC power cord into a different circuit
breaker than the circuit breaker to which the Summit Virtual Chassis AC power socket
is connected.
REDUNDANT POWER SUPPLY PORTS
The Summit Virtual Chassis has two RPS ports. Each port connects to a different
Summit switch.
Figure 5 shows the rear view of a rack that has one Summit switch mounted above the
Summit Virtual Chassis and one Summit switch mounted below. The upper switch is
cabled to the upper RPS port; the lower switch is cabled to the lower RPS port.
Figure 5: Summit Switches connected to a Summit Virtual Chassis
RPS cable (DC)
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SUMMIT VIRTUAL CHASSIS DESIGN AND INSTALLATION GUIDE 9
SUPPORTED CONFIGURATIONS
The upper power socket on the Summit Virtual Chassis provides the AC source for
backup power for the upper switch; the lower power socket provides the AC source for
backup power for the lower switch.
SUPPORTED CONFIGURATIONS
The following two types of Summit Virtual Chassis configurations are supported:
•Single Virtual Chassis stack
•Parallel Virtual Chassis stack (using two or four Summit Virtual Chassis)
A Virtual Chassis stack is any valid Virtual Chassis configuration that includes the
Summit Virtual Chassis and Summit switches. A parallel Virtual Chassis stack can
consist of two or four Summit Virtual Chassis. Multiple stacks can be combined using
traditional bridging and routing system design elements.
A single Summit switch can be connected to multiple Summit Virtual Chassis
units. However, you can have only one connection between any one Summit
switch and any one Summit Virtual Chassis. In addition, a Summit Virtual
Chassis cannot connect directly to another Summit Virtual Chassis.
You cannot use the redundant Gigabit Ethernet port to connect to a Summit
Virtual Chassis.
SINGLE VIRTUAL CHASSIS STACK
In a single Virtual Chassis stack, one Summit Virtual Chassis can be connected to a
maximum of eight Summit switches. A single Virtual Chassis stack is shown in Figure 6.
Figure 6: Single Virtual Chassis stack
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10 SUMMIT VIRTUAL CHASSIS DESIGN AND INSTALLATION GUIDE
SUPPORTED CONFIGURATIONS
One Gigabit Ethernet port from each of the Summit switches is cabled to the Summit
Virtual Chassis. The maximum distance between the Summit switch and the Summit
Virtual Chassis is 260 meters. Each Summit switch continues to operate independently.
The Summit Virtual Chassis does not act as an OSI layer 2 bridge hop or an OSI layer 3
router hop. It is transparent to layer 2 and 3 protocols.
It is recommended that you use a single Virtual Chassis stack when using the Summit3
switch. A single Virtual Chassis stack can also be used with Summit1, Summit2,
Summit4, and Summit48 switches.
The Summit Virtual Chassis can provide redundant power for two of the Summit
switches shown in Figure 6. For the other Summit switches to have backup power, you
must use a Summit RPS. The Summit RPS provides power to up to two Summit
switches. Figure 7 shows the single Virtual Chassis stack with the addition of a Summit
RPS.
Figure 7: Single Virtual Chassis stack with a Summit RPS
For more information on using a Summit RPS, refer to the Summit Redundant
Power Supply Installation Guide
.
PARALLEL VIRTUAL CHASSIS STACK
The parallel Virtual Chassis stack uses two or four Summit Virtual Chassis to provide
redundant load-sharing port configurations for up to eight Summit switches. You can
use two Summit Virtual Chassis with Summit2 and Summit48 switches, and four
Summit Virtual Chassis with Summit1 and Summit4 switches.
DC RPS cable
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SUMMIT VIRTUAL CHASSIS DESIGN AND INSTALLATION GUIDE 11
SUPPORTED CONFIGURATIONS
PARALLEL VIRTUAL CHASSIS STACK USING TWO SUMMIT VIRTUAL CHASSIS UNITS
A parallel Virtual Chassis stack using two Summit Virtual Chassis is used to connect up
to eight Summit2 or Summit48 switches.
The Summit2 switch has two Gigabit Ethernet ports, labeled port 17 and port 18. The
Summit48 switch has two Gigabit Ethernet ports, labeled port 49 and port 50. For a
parallel Virtual Chassis configuration, port 17 on the Summit2 or port 49 on the
Summit48 is cabled to one of the ports on one of the Summit Virtual Chassis. Port 18 on
the Summit2 or port 50 on the Summit48 is cabled to the second Summit Virtual
Chassis. You must use the same port number on each of the two Summit Virtual
Chassis.
For example, in Figure 8, two Summit2 switches, labeled Switch A and Switch B, are
cabled to two Summit Virtual Chassis, labeled Chassis 1 and Chassis 2.
Figure 8: Parallel Virtual Chassis stack example using Summit2 and Summit48
switches
Switch A is cabled to port 1 on each Summit Virtual Chassis. Switch B is cabled to port
2 on each Summit Virtual Chassis.
Switch A Switch B
18
17
Chassis 2
5 6 7 81 2 3 4
49R49
50R50
Chassis 1
5 6 7 81 2 3 4
2-port
load-sharing
group
2-port
load-sharing
group
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12 SUMMIT VIRTUAL CHASSIS DESIGN AND INSTALLATION GUIDE
SUPPORTED CONFIGURATIONS
The port connections between the Summit switches and the Summit Virtual Chassis
shown in Figure 8 are as follows:
•Port 17 on Switch A is cabled to port 1 on Chassis 1.
•Port 18 on Switch A is cabled to port 1 on Chassis 2.
•Port 49 on Switch B is cabled to port 2 on Chassis 1.
•Port 50 on Switch B is cabled to port 2 on Chassis 2.
Summit switch connections must be cabled to the same port numbers on both
Summit Virtual Chassis. If not, communication among the switches will not
operate properly.
PARALLEL STACK USING FOUR SUMMIT VIRTUAL CHASSIS UNITS
A parallel Virtual Chassis stack using two or four Summit Virtual Chassis is used to
connect up to eight Summit1 or Summit4 switches, as shown in Figure 9.
Figure 9: Four parallel Virtual Chassis stack using eight Summit1 or Summit4 switches
4-port
load-sharing
groups
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SUMMIT VIRTUAL CHASSIS DESIGN AND INSTALLATION GUIDE 13
SUPPORTED CONFIGURATIONS
In a parallel Virtual Chassis configuration using Summit1 or Summit4 switches, up to
four ports per Summit switch can be cabled to four different Summit Virtual Chassis.
Each switch must be cabled to the same port number on each Summit Virtual Chassis.
In a smaller detailed example shown in Figure 10, Switch A is cabled to four Summit
Virtual Chassis, labeled Chassis 1, Chassis 2, Chassis 3, and Chassis 4. Switch B is also
cabled to the four Summit Virtual Chassis.
Figure 10: Detailed example using four Virtual Chassis units
Switch A uses port 2 on each Summit Virtual Chassis; Switch B uses port 6. The port
connections between the Summit1 switches and the four Summit Virtual Chassis are as
follows:
•Port 4 on Switch A is cabled to port 2 on Chassis 1.
•Port 5 on Switch A is cabled to port 2 on Chassis 2.
•Port 6 on Switch A is cabled to port 2 on Chassis 3.
•Port 7 on Switch A is cabled to port 2 on Chassis 4.
•Port 4 on Switch B is cabled to port 6 on Chassis 1.
•Port 5 on Switch B is cabled to port 6 on Chassis 2.
•Port 6 on Switch B is cabled to port 6 on Chassis 3.
•Port 7 on Switch B is cabled to port 6 on Chassis 4.
Summit switch connection must be cabled to the same port numbers on all
Summit Virtual Chassis. If not, communication among the switches will not
operate properly.
Chassis 1 Chassis 2 Chassis 3 Chassis 4
4-port
load-sharing
groups Switch B
2341 6785 2341 6785 2341 6785 2341 6785
234
1
567
8
Switch A
234
1
567
8
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14 SUMMIT VIRTUAL CHASSIS DESIGN AND INSTALLATION GUIDE
SUPPORTED CONFIGURATIONS
COMBINING VIRTUAL CHASSIS STACKS
A Virtual Chassis stack functions as a single entity. Multiple Virtual Chassis stacks can
be combined using traditional bridging and routing system design methods. For
example, when combining Virtual Chassis stacks, loops are not permitted unless they
use appropriate routing boundaries, or the Spanning Tree Protocol (STP).
Stacks can be combined in two ways. The first and most straightforward method uses
available Summit switch ports in each stack to interconnect the stacks. When using this
method, you must follow the same rules for connecting any Summit switch, including
load-sharing rules, port redundancy rules, and so on.
The second method uses a Summit switch that is a member of both Virtual Chassis
stacks. Using this method, you must adhere to the requirements of both stacks when
connecting the switch. For example, a single port is used for connecting to a single
Virtual Chassis stack; two ports are used for connecting to a parallel Virtual Chassis
stack that has two Summit Virtual Chassis. Figure 11 shows two single Virtual Chassis
stacks connected using a Summit1. The Summit1 is a member of both stacks.
Figure 11: Combining Virtual Chassis stacks
Table 2 describes Summit switch support for the various Virtual Chassis stack
configurations. The parallel Virtual Chassis stack information is identical to the
load-sharing port configurations supported on Gigabit Ethernet ports for the Summit
switch family.
Stack 2Stack 1
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SUMMIT VIRTUAL CHASSIS DESIGN AND INSTALLATION GUIDE 15
SUPPORTED CONFIGURATIONS
*Can result in a lack ofconnectivity ifa single failure occurs in the stack. Refer to the section,“Configurations
to Avoid,” for more information.
You must configure the Summit ports that will be used to connect to the Summit
Virtual Chassis. For information on configuring Summit ports, refer to the
Summit
Switch Installation and User Guide
.
CONFIGURATIONS TO AVOID
Some Virtual Chassis configurations may appear to work, but are not supported
because their redundancy capabilities are quite limited. The following section has an
example of this situation.
ADDING ASUMMIT3 SWITCH TO APARALLEL VIRTUAL CHASSIS STACK
The Summit3 switch has one active Gigabit Ethernet port. Therefore, it can have one
active connection to a Summit Virtual Chassis. Figure 12 shows how you would add a
Summit3 to the example used in the parallel Virtual Chassis example using Summit2
switches, shown previously in Figure 8.
Table 2: Summit Switch Support for Virtual Chassis Stacks
Single Virtual
Chassis Stack Parallel Virtual Chassis Stack (2) Parallel Virtual Chassis Stack (4)
Summit1 Any of ports 1 - 8 Ports 2 and 3, or
Ports 4 and 5, or
Ports 6 and 7
Ports 4, 5, 6, and 7
Summit2 Port 17 or Port 18 Ports 17 and 18 Not supported*
Summit3 Port 25 Not supported* Not supported*
Summit4 Any of ports 17 - 22 Ports 17 and 18, or
Ports 19 and 20, or
Ports 21 and 22
Ports 19, 20, 21, and 22
Summit48 Port 49 or Port 50 Ports 49 and 50 Not supported*
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16 SUMMIT VIRTUAL CHASSIS DESIGN AND INSTALLATION GUIDE
SUPPORTED CONFIGURATIONS
Figure 12: Adding a Summit3 switch to the parallel Virtual Chassis stack example
In Figure 12, the two Summit2 switches are connected to port 1 and port 2 of both
Summit Virtual Chassis. The Summit3 can connect to port 3 on one of the Summit
Virtual Chassis. Port3 of the other Summit Virtual Chassis must not be connected to any
other Summit switch. Doing so can cause frames to be delivered to the wrong device.
The port connections between the Summit switches and the Summit Virtual Chassis
shown in Figure 12 are as follows:
•Port 17 on Switch A is cabled to port 1 on Chassis 1.
•Port 18 on Switch A is cabled to port 1 on Chassis 2.
•Port 49 on Switch B is cabled to port 2 on Chassis 1.
•Port 50 on Switch B is cabled to port 2 on Chassis 2.
•Port 25 on Switch C is cabled to port 3 on Chassis 1.
•Nothing is cabled to port 3 on Chassis 2.
Connecting a device to port 3 on Chassis 2 can result in frames being delivered
to the wrong switch.
Only Switch A and Switch B benefit from the load-sharing and redundancy capabilities
of the parallel Virtual Chassis configuration. If either Switch A or Switch B loses its
connection to Chassis 1, traffic is no longer be able to reach Switch 3, because Switch 3
is not connected to Chassis 2.
Switch A Switch CSwitch B
Chassis 2Chassis 1
2-port
load-sharing
groups
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SUMMIT VIRTUAL CHASSIS DESIGN AND INSTALLATION GUIDE 17
CONFIGURING SUMMIT SWITCHES FOR USE WITH THE VIRTUAL CHASSIS
The same situation can occur if a Summit2 or a Summit48 is used in a parallel Virtual
Chassis stack that consists of four Summit Virtual Chassis. Only Summit switches that
support four links benefit from the redundancy capabilities. If specific links to other
switches fail, the Summit2 can lose partial connectivity to the stack.
CONFIGURING SUMMIT SWITCHES FOR USE WITH THE
VIRTUAL CHASSIS
The Summit Virtual chassis requires no configuration and has no user interface. You
must configure each Summit switch that will be attached to a Summit Virtual Chassis.
Several important aspects of configuring the Summit switch for use with a Summit
Virtual Chassis are detailed in the Summit Installation and User Guide. These include the
following:
•You must configure the Summit switch port(s) prior to connecting the switch to the
Summit Virtual Chassis. Each connected port must be configured as a SummitLink
port. If you are using a parallel Virtual Chassis stack, you must configure
load-sharing on the Summit switch after the ports are designated as SummitLink
ports.
•Summit switches exchange information across Virtual Chassis links for the purpose
of automatically joining Virtual LANs (VLANs). A VLAN is automatically joined
between Summit switches that are members of the same Virtual Chassis stack if the
VLAN name and configured 802.1Q tag values are identical.
The default VLAN on all Summit switches is joined through a Virtual Chassis
stack because the VLAN name is the same (
Default ), and the explicit 802.1Q tag
value is
1 on each switch.
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18 SUMMIT VIRTUAL CHASSIS DESIGN AND INSTALLATION GUIDE
INSTALLING THE SUMMIT VIRTUAL CHASSIS
INSTALLING THE SUMMIT VIRTUAL CHASSIS
To install the Summit Virtual Chassis, follow these steps:
1Mount the Summit Virtual Chassis in the equipment rack, or, if it will be located on
a table, place the rubber feet on the bottom of the Summit Virtual Chassis.
For more information on installing the mounting brackets, refer to the Summit
Switch Installation and User Guide
.
2If you are using the RPS ports on the Summit Virtual Chassis to connect one or two
Summit switches, do the following:
aUsing the supplied cables, connect the RPS port on the Summit Virtual Chassis to
the RPS port on each Summit switch.
The RPS DC cable must be connected to the Summit switch prior to connecting
the AC power cord to the Summit Virtual Chassis.
bTighten the screws connecting both sides of the RPS cable.
Ensure that the cable is secured and is making good contact prior to turning on
the Summit Virtual Chassis.
cConnect an AC power cord to each power socket.
dPlug the power cords into properly grounded AC outlets.
When disconnecting the Summit Virtual chassis, the AC power cords must be
removed from the Summit Virtual Chassis before removing the RPS DC cables.
3Connect the fiber-optic cable between each Summit switch port and each Summit
Virtual Chassis port.
If you are cabling a single Summit switch to two Summit Virtual Chassis in a
parallel configuration, ensure that you cable each switch port to the same port
number on the two different Summit Virtual Chassis.
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