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How to collect logs from each member of an EX8200 virtual-chassis (XRE200)

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Article ID: KB23584 KB Last Updated: 19 Apr 2012Version: 1.0
Summary:
This knowledge base article explains one of the ways to collect logs from each member of the EX8200 Virtual Chassis. Master/Backup XRE, Routing-engine/(s) of member switches (EX8200 with single/dual routing-engines)
Symptoms:
Typically it would be sufficient to collect logs from the following members on an EX8200 Virtual Chassis setup.  However, this article includes how to log into the line cards of member switches(EX82XX) if required. 

1. Master XRE
2. Backup XRE
3. Master routing-engine of EX82XX
4. Backup routing-engine of EX82XX 
Cause:
 
Solution:
1. Log into the master XRE and check the virtual-chassis topology to identify each member and its member ID. 

{master:8}
root@XRE200-LC-DC-XRE1> show virtual-chassis

Preprovisioned Virtual Chassis
Virtual Chassis ID: 5f3d.2290.b587
Virtual Chassis Mode: Enabled


                                                                                                              Mastership                         Neighbor               List
Member ID           Status              Serial No            Model                priority            Role               ID                   Interface
0 (FPC 0-15)        Prsnt            BA0911152292    ex8216                    0             Linecard            8                   vcp-0/0
                                                                                                                                                                  1                   vcp-14/0/6
                                                                                                                                                                  1                   vcp-14/0/7
                                                                                                                                                                  1                   vcp-6/0/6
                                                                                                                                                                  1                   vcp-6/0/7
1 (FPC 16-31)     Prsnt              BA0909250255   ex8216                    0             Linecard            9                   vcp-0/0
                                                                                                                                                                  8                  vcp-0/1
                                                                                                                                                                  0                  vcp-14/0/6
                                                                                                                                                                  0                  vcp-14/0/7
                                                                                                                                                                  0                  vcp-6/0/6
                                                                                                                                                                  0                  vcp-6/0/7
8 (FPC 128-143) Prsnt             122010000100    ex-xre                      129         Master*             0                 vcp-0/0
                                                                                                                                                                  9                 vcp-1/0
                                                                                                                                                                  1                 vcp-1/1
9 (FPC 144-159) Prsnt             122010000078     ex-xre                     129         Backup              1                 vcp-0/0
                                                                                                                                                                  8                 vcp-1/0

2. Enter the following command to archive the /var/log directory of master XRE.
  • In this example member 8 is the master XRE. The following command will zip (tar) the folder "/var/log" and name the file (LOGS-MASTER-XRE.tar). It also pushes the zipped file to the master XRE's destination folder "/var/tmp".
{master:8}
root@XRE200-LC-DC-XRE1>file archive source /var/log destination member8:/var/tmp/LOGS-MASTER-XRE

3. Log into the Backup XRE

In this example member 9 is a backup XRE. 

{master:8}
root@XRE200-LC-DC-XRE1> request session member 9

root@XRE200-LC-NC-XRE1:BK:9% cli
warning: This chassis is operating in a non-master role as part of a virtual-chassis (VC) system.
warning: Use of interactive commands should be limited to debugging and VC Port operations.
warning: Full CLI access is provided by the Virtual Chassis Master (VC-M) chassis.
warning: The VC-M can be identified through the show virtual-chassis status command executed at this console.
warning: Please logout and log into the VC-M to use CLI.

4. Enter the following command to archive the /var/log directory of the backup XRE.

The following command will zip (tar) the folder "/var/log" and name the file (LOGS-BACKUP-XRE.tar). It also pushes the zipped file to the Master XRE's destination folder "/var/tmp". 

{backup:9}
root@XRE200-LC-NC-XRE1>file archive source /var/log destination member8:/var/tmp/LOGS-BACKUP-XRE

5. Type 'exit' to close the backup XRE(member 9) session and go back to master XRE(member 8).

{backup:9}
root@XRE200-LC-NC-XRE1> exit

root@XRE200-LC-NC-XRE1:BK:9% exit
rlogin: connection closed

{master:8}
root@XRE200-LC-DC-XRE1>  

6. Login to member 0 from Master XRE and collect logs from member0-re0.

The contents of the entire /var/log folder of member 0's master routing-engine will be zipped and pushed to master XRE's /var/tmp folder.

{master:8}
root@XRE200-LC-DC-XRE1> request session member 0 
root@:RE:1% cli
warning: This chassis is operating in a non-master role as part of a virtual-chassis (VC) system.
warning: Use of interactive commands should be limited to debugging and VC Port operations.
warning: Full CLI access is provided by the Virtual Chassis Master (VC-M) chassis.
warning: The VC-M can be identified through the show virtual-chassis status command executed at this console.
warning: Please logout and log into the VC-M to use CLI.
{master:1}
root> file archive source /var/log destination member8:/var/tmp/LOGS-MEM0-RE0

7. Login to backup RE of member 0. 

The contents of the entire /var/log folder of member 0's backup routing-engine will be zipped and pushed to master XRE's /var/tmp folder.

root> request routing-engine login backup
root@:BK:0% cli
warning: This chassis is operating in a non-master role as part of a virtual-chassis (VC) system.
warning: Use of interactive commands should be limited to debugging and VC Port operations.
warning: Full CLI access is provided by the Virtual Chassis Master (VC-M) chassis.
warning: The VC-M can be identified through the show virtual-chassis status command executed at this console.
warning: Please logout and log into the VC-M to use CLI.
{backup:0}
root> file archive source /var/log destination member8:/var/tmp/LOGS-MEM0-RE1

8. Repeat steps 6 & 7 for other members of the FIXX.

This way you will have all the logs copied to the master XRE /var/tmp folder.

master:8}
root@XRE200-LC-DC-XRE1> file list /var/tmp/

/var/tmp/:
.snap/
LOGS-BACKUP-XRE.tar
LOGS-MASTER-XRE.tar
LOGS-MEM0-RE0.tar
LOGS-MEM1-RE0.tar
LOGS-MEM1-RE1.tar
LOGs-MEM0-RE1.tar

9. You can run the following command from any member in case you are required to login to the individual FPCs of the EX8200s.

In this example, we are logging into fpc2 of member 0 from master XRE. 

root@XRE200-LC-DC-XRE1:RE:8% rlogin -Ji member0-fpc2
root@fpc2%

10. You can run the following command to copy any file from the line card's FPC to master XRE.

In this example we are copying a file named 'test1.txt' from member 0 - FPC2 - to the master XRE /var/tmp folder.  
root@fpc2% rcp -Ji /var/tmp/test1.txt member8:/var/tmp/

11. Copy all the archived logs from Master XRE's /var/tmp folder to your PC or another source.

For more details on this check out the 'Export the Archive Logs' section from the KB20569










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