Cisco gurus:
I configed slb on two 6509s (native IOS, version 12.1(12c)E5). The performance is disappointing. The traffic to load balaced servers is about 4M/s. Previously, cpu load was less than 5%, now it's 30%. sh run sometimes takes 10 minutes to show up. A lot of messages like below come up. Our hardware (SUP1A, MSFC2 and PFC)dictates that IOS 12.1(12c)E5 may be the highest version that we can run.
I can only find one technical tip regarding SLB on 6500, and it's quite basic. Seems not too many people use this feature.
Can someone share your experience with this feature?
Thanks,
Weidong
--------------------------------
Cat6509#sh run
...
ip slb serverfarm TESTFARM
probe PROBE-PING
! BTW, http probe doesn't work!
!
real 192.168.66.234
inservice
!
real 192.168.66.235
inservice
!
ip slb vserver TEST-VS-FTP
virtual 192.168.75.163 tcp ftp service ftp
serverfarm TESTFARM
sticky 3600
inservice standby V-SERVER
!
ip slb vserver TEST-VS-WWW
virtual 192.168.75.163 tcp www
serverfarm TESTFARM
sticky 3600
inservice standby V-SERVER
Cat6509#sh ip slb reals
real farm name weight state conns
-------------------------------------------------------------------
192.168.66.234 TESTFARM 8 OPERATIONAL 533
192.168.66.235 TESTFARM 8 OPERATIONAL 411
Cat6509#sh log
....
%ICC-SP-5-WATERMARK: 1004 pkts for class TCAM-API are waiting to be processed
%IPC-SP-5-WATERMARK: 990 messages pending in rcv for the port Card17:Request(10000.8) seat 2210000
%ICC-SP-5-WATERMARK: 949 pkts for class TCAM-API are waiting to be processed
%IPC-SP-5-WATERMARK: 931 messages pending in rcv for the port Card17:Request(10000.8) seat 2210000
%IPC-SP-5-WATERMARK: 870 messages pending in rcv for the port Card17:Request(10000.8) seat 2210000
%ICC-SP-5-WATERMARK: 865 pkts for class TCAM-API are waiting to be processed
%IPC-SP-5-WATERMARK: 806 messages pending in rcv for the port Card17:Request(10000.8) seat 2210000
