Netscaler Knowledgebase

Summary

This document describes how to clear or remove a Border Gateway Protocol (BGP) configuration.

Requirements

The following items are necessary to perform this task:

• Administrative/shell/root access to the NetScaler

• Basic understanding of UNIX commands

• Access to the NetScaler command line prompt

Procedure

   1. Log on to the NetScaler with full administrative privileges.
   2. Enter the shell command.
   3. CD to the nsconfig directory: cd /nsconfig. Verify the file existence.

      root@ns# cd /nsconfig
      root@ns# ls –l
      -rw-r-----  1 root  wheel   259 Oct 25 11:56 ZebOS.conf
      -r--r--r--  1 root  wheel   731 Aug 10 22:13 inetd.conf
   4. Remove all the ZebOS.conf files (if there are more than one):

      root@ns# rm -r ZebOS*
   5. Reload the NetScaler.
   6. If you do not want to reload the NetScaler, kill and restart the processes related to BGP.
      Important!: This step should only be completed by a skilled system administrator because of the potential for serious problems. Use this step at your own risk.
         1. Find the respective processes:

            root@ns# ps -aux |grep Zeb
            root        375  0.0  0.1  2592 1016  ??  Is    2:41AM   0:00.01 /netscaler/nsm -d -f /nsconfig/ZebOS.conf
            root       5684  0.0  0.1  3160 2088  ??  S<s  11:34AM   0:00.02 /netscaler/bgpd -d -f /nsconfig/ZebOS.conf
            root       6070  0.0  0.0  1016  600  p1  R+   11:59AM   0:00.00 grep Zeb
         2. Kill the process by using kill -9 <pid>

            root@ns# kill -9 375
            root@ns# kill -9 5684
         3. Restart those processes by entering the same commands from the ps command.

            root@ns# /netscaler/nsm -d -f /nsconfig/ZebOS.conf
            root@ns#  /netscaler/bgpd -d -f /nsconfig/ZebOS.conf
         4. Make sure that the process are running again:

            root@ns# ps -aux |grep Zeb
            root       6137  0.0  0.1  2580 1480  ??  Ss   12:02PM   0:00.00 /netscaler/nsm -d -f /nsconfig/ZebOS.conf
            root       6144  0.0  0.1  3080 2020  ??  Ss   12:03PM   0:00.00 /netscaler/bgpd -d -f /nsconfig/ZebOS.conf
            root       6147  0.0  0.0  1012  592  p1  R+   12:03PM   0:00.00 grep Zeb
         5. If the process does not restart, you need to reload.
   7. Configure BGP via >vtysh again and save it.