Ruijie RG-RSR77 Series Operating instructions

RG-RSR77 Series Router Routine Maintenance
and Troubleshooting

Contents
■Routine Maintenance Suggestions
■Common Problem Handling
■Factory Default Restoration of Devices
■Software Version Upgrade
■Obtaining Help

Preface
Revision History
Audience
Ruijie business partners and customers who are responsible for configuring
and maintaining Ruijie wireless devices.
Date
Change Contents
Reviser
2016.3
Initial
publication V1.0
TAC
Oversea
Note :
For more detail configuration , see configuration guide for each product . you can download
configuration guide at http://www.ruijienetworks.com
For more technical enquiry , you can visit Ruijie Service portal at
http://case.ruijienetworks.com . You need to sign up before submit a case.

Importance of Routine Maintenance
□Routine maintenance is a type of preventive maintenance. Through routine
maintenance, defects or hidden risks existing on devices can be identified
and eliminated in a timely manner and the health conditions of devices can
be maintained during normal running of the devices. Then, the devices run
securely, stably, and reliably in the long run.
Contents of Routine Maintenance
□Environment/Indicator maintenance
□Hardware status maintenance
□Active/Standby supervisor election and
status switching
□Card status maintenance
□Software version maintenance
□CPU status maintenance
Routine Maintenance Suggestions
□Memory status maintenance
□Flow table status maintenance
□Interface status maintenance
□Log maintenance
□Fault repairing

Routine Maintenance Suggestions
Environment/Indicator Maintenance
□Environment conditions:
▪The device shells, internal surface of the devices, dustproof filters inside
the chassis, and the floors are clean and free of dust. Clean or replace
dustproof filters of the cabinets in a timely manner.
▪Ensure that fans run properly during normal running of devices. Shutting
down fans arbitrarily will cause temperature rise inside the devices and
even damage the devices. Do not place sundries at the ventilation
openings of devices, so as not to affect the ventilation and heat dissipation
of cabinet doors and fan trays.
□Indicators:
▪In normal cases, the PWR and SYS indicators on the supervisor are on in
green. For details about indicators, see the RG-RSR77 Series Router
Datasheet.pptx or see the RG-RSR77 Series Router Hardware Installation
and Reference Guide.pdf.

Routine Maintenance Suggestions
Hardware Status Maintenance
□Run the show environment command to display the hardware running status:
▪RSR7708#show environment
Environmental status update at 23:4:53 2013-01-16.
Data is 5 second old, refresh in 30 second(s).
Power Supplies: //Running condition of power modules. "on"
indicates normal.
Power supply 1 is present. Unit is on.
Power supply 2 is present. Unit is on.
Power supply 3 is not present. Unit is off.
Fans working status:OK. //Running condition of the fan module. "OK"
indicates normal.
Temperature readings: //Internal temperature of the chassis
measured at 23 C
Hardware:
CPU name : Freescale MPC85xx.
CPU Speed: 1320M
□If an exception occurs, an alarm will be displayed.

Routine Maintenance Suggestions
Active/Standby Supervisor Election and Status Switching
□Election of active and standby supervisors:
▪After the device with dual supervisors is restarted, the M1 slot is selected as the active
supervisor and the M2 slot is selected as the standby supervisor.
▪When either of the M1 or M2 slot is selected as the active supervisor, if another
supervisor is hot-swapped, the active supervisor keeps unchanged and the inserted
supervisor serves as the standby supervisor.
▪If the standby supervisor is removed during device running, the device will not be affected.
If the active supervisor is removed during device running, the standby supervisor rapidly
serves as the active supervisor.
□Run the show ver slot command to check the active and standby states of supervisors:
▪RSR7708#show version slots
Dev Slot MaxPorts Configured-Module Online-Module Status
--- ---- -------- ----------------- ----------------- ------
1 M1 1 RSR7708-SRCMI RSR7708-SRCMI master
1 M2 1 RSR7708-SRCMI RSR7708-SRCMI slave
□Switching of active and standby supervisors:
▪Run the command to switch the active and standby supervisors:
RSR7708#redundancy forceswitch
▪You can remove and then insert the active supervisor to switch the active and standby
supervisors.

Routine Maintenance Suggestions
Card Status Maintenance
□Run the show version slot command to display the card running status:
▪The Status column displays the current status of cards.
▪The Configured-Module column indicates installed cards.
▪The Online-Module column indicates cards that are actually online.
▪Running: Indicates the normal status. A slot with a card inserted is in the
running state in normal cases.

Routine Maintenance Suggestions
Card Status Maintenance
□Description of Abnormal States of Cards and Restoration Operations
▪Installed: Indicates that a card is virtually loaded but is not actually
inserted. This state occurs in two cases: 1) One card is installed virtually
for command learning or pre-configuration. 2) A card is inserted before but
is removed now.
▫Restoration operation:
–Run the no install command to virtually delete the card of this slot,then
insert the card, and the device automatically identifies the card.
Ruijie(config)#no install 4/1 // 4/1 indicates the slot ID.
▪None: Indicates that no card is inserted and no card is manually installed.
The slot is in the empty state. If a card is actually inserted but is in the
None state, remove the card and insert it again. If the card cannot be
restored to the normal state, a hardware fault may exist.

Routine Maintenance Suggestions
Card Status Maintenance
□Description of Abnormal States of Cards and Restoration Operations
▪Conflict: Indicates the model of an virtually installed card is inconsistent with that of a
card that is actually inserted. Another card has been inserted into this slot before or
manually virtually installed in this slot. As a result, the virtually installed card is
inconsistent with the card that is actually inserted and the card cannot work properly.
▫Restoration operation:
–Run the no install command to manually delete the card of this slot.
–Ruijie(config)#no install 1/1 // 1/1 indicates the slot ID.
–Run the install command to install the card that is actually inserted.
–Ruijie(config)#install 1/1 FNM-4POS-STM1
▪Run-remove: Indicates that a card is powered off by running the remove command.
▫Restoration operation:
–Run the no remove command to power on the card again.
–Ruijie(config)#no remove 1/2
–You can also hot-swap the card so that the card can be re-identified.

Routine Maintenance Suggestions
Software Version Maintenance
□Run the show version command to check the version:
▪RSR7708#sho version
System description : Ruijie Router (RSR7708) by Ruijie Networks
System start time : 2012-12-25 17:28:0
System uptime : 22:5:47:37
System hardware version : 1.00
System software version : RGOS 10.4(3b15) Release(144634)
System BOOT version : 10.4(3b15) Release(144634)
System CTRL version : 10.4(3b15) Release(144634)
Module information:
Slot-M1 : RSR7708-SRCMI
System hardware version : 1.00
System software version : RGOS 10.4(3b15) Release(144634)
Flash MAIN version : 10.4(3b15) Release(144634)
Flash CTRL version : 10.4(3b15) Release(144634)
Flash BOOT version : 10.4(3b15) Release(144634)
▪It is recommended that "System software version", "Flash MAIN
version", and "Flash CTRL version" of the supervisor and all cards are
consistent. If inconsistency exists, see "Software Version Upgrade" in
this slide for upgrade.
▪Their "Flash BOOT version" can be different.

Routine Maintenance Suggestions
CPU Status Maintenance
□Run the show cpu command to display the CPU running status:
▪RSR7708#sho cpu
=======================================
CPU Using Rate Information
CPU utilization in five seconds: 0.21%
CPU utilization in one minute : 0.21%
CPU utilization in five minutes: 0.22%
▪The CPU utilization becomes a bit high in a short period of time when the
device is configured or a show command is executed, which is normal.
▪CPU utilization in five minutes should be maintained below 30% when the
device is in the healthy state.
▪The more services are carried by the device, the higher the CPU is, which
is normal. Pay attention to the device when the value is larger than 60%.
If the value is larger than 60% for a long time, get in touch with Ruijie Post
Sales.

Routine Maintenance Suggestions
Memory Status Maintenance
□Run the show memory command to display the memory running status:
▪RSR7708#sho memory
System Memory Statistic:
Free pages: 373700
watermarks : min 3555, lower 5319, low 7083, high 8847
System Total Memory : 2048MB, Current Free Memory : 1497708KB
Used Rate : 29%
▪The memory utilization should be maintained below 60% when the device
is in the healthy state.
▪The more services are carried by the device, the higher the memory
utilization is. Pay attention to the device when the memory utilization is
larger than 80%. If the memory utilization is larger than 80% for a long
time, get in touch with Ruijie Post Sales.

Routine Maintenance Suggestions
Flow Table Status Maintenance
□Run the show ip fpm statistics command to display the flow table utilization status:
▪RSR7708#sho ip fpm statistics
Flow table capacity: 32767
Flow number: 2
Nat-flow number: 0
User number: 2
Defragment context number: 0
Defragment packet number: 0
Event count: 20134
Slot-1/1 : FNM-4POS-STM1
Flow table capacity: 2097151 //Flow table capacity
Flow number: 0 //Number of entries in the current flow table
Nat-flow number: 0 //Number of entries in the NAT flow table
User number: 0
Defragment context number: 0 //Number of fragmented IP packets to be combined
Defragment packet number: 0 //Number of fragmented packets to be combined
Event count: 19552
▪The supervisor and cards have their own flow tables. The flow table has a capacity of 2
million entries. If the number of entries in a flow table is close to the flow table capacity (the
RSR77 is a distributed system, with each card having an independent flow table capacity),
network attacks maybe exist and the attack source needs to be located.

Routine Maintenance Suggestions
Interface Status Maintenance
□Run the show interface command to display the interface status. Pay attention to
the following:
▪Whether the interface traffic is normal. If the interface traffic is close to or equal to the
bandwidth, check whether the bandwidth can meet existing application requirement or
whether attacks exist on the network and deplete the bandwidth.
▪Whether there are a large number of CRC errors and dropped packets and the quantities
increase continuously. If yes, the fault may be relevant to the poor cable quality, cable
aging, or mismatched duplex rate.

Routine Maintenance Suggestions
Log Maintenance
□Run the show log command to check whether there is exception information in logs, for
example, frequent interface up/down, dynamic protocol down, and alarm prompts. Find
out logs according to the problem that you come across.
□Record logs in the flash memory. The buffer for storing logs is not large and the logs are
lost after the device is restarted. It is recommended that logs be recorded in the flash
memory. Querying historical logs is very useful when a fault occurs.
▪RSR7708(config)#logging file flash:/log 2000000 7 //Record logs in the flash
memory.
▪RSR7708# more flash:/log.txt //Display log files recorded in the flash memory.
Clock Maintenance
□Run the show clock command to check the current time:
▪Ruijie#sho clock
02:24:23 UTC Thu, Jan 17, 2013
□The time accuracy ensures the accuracy of log recording time, thereby facilitating fault
locating. Applications such as the CA certificate also have high time requirements.

Routine Maintenance Suggestions
Fault Information Collection
□If a fault cannot be located in a timely manner, collect the following basic
information and get in touch with Ruijie Post Sales to seek technical support:
▪Ruijie#Show version //Display the version.
▪Ruijie#Show version slot //Display the installation status of a card.
▪Ruijie#Show run //Display the device configuration.
▪Ruijie#Show cpu //Display the device CPU status.
▪Ruijie#Show memory //Display the device memory status.
▪Ruijie#Show interface (Run the show command multiple times if a traffic-
relevant problem or packet loss problem occurs.)
//Display the interface status.
▪Ruijie#Show ip int brief //Display the interface status brief.
▪Ruijie#Show ip fpm sta //Display the flow table status.
▪Ruijie#Show ip route //Display the routing table.
▪Ruijie#Show clock //Display the current time of the device.
▪Ruijie#Show log //Display device logs in buffer.
▪Ruijie#more flash:/log.txt //Display logs recorded in the flash memory.

Contents
■Routine Maintenance Suggestions
■Common Problem Handling
■Factory Default Restoration of Devices
■Software Version Upgrade
■Obtaining Help

Common Problem Handling
Problem Symptom
□A device cannot enter the config mode through the console and an error is
prompted:
▪Ruijie>en
▪Ruijie#conf t
▪% Can't execute this command in redundancy slave.
Problem Cause
□The console cable is inserted into the standby supervisor. The standby
supervisor cannot enter the config mode.
Solution
□Plug in the console cable into the active supervisor.

Common Problem Handling
Problem Symptom
□After a device is started, the system is unable to launch firmware correctly
and it prompts “send download request”.
Problem Cause
□The device firmware is lost.
Solution
□Download correct RGOS firmware.
□Reinstall the firmware via TFTP server (for detail steps, see "Upgrading the
Software Version at the Bottom Layer" in latter section .