Cisco Catalyst 6500 Series Configuration Note

A-13
Catalyst 6500 Series Content Switching Module Configuration Note
OL-4612-01
Appendix A Configuration Examples
Route Health Injection
Internet Address Physical Interface VLAN Type Status
--------------------------------------------------------------------
10.20.210.1 00-02-FC-E1-68-EB 210 -ALIAS- local
10.20.210.2 00-02-FC-E1-68-EC 210 --SLB-- local
10.20.210.10 00-D0-B7-A0-68-5D 210 REAL up(0 misses)
10.20.210.20 00-D0-B7-A0-68-5D 210 REAL up(0 misses)
10.20.220.1 00-02-FC-E1-68-EB 220 -ALIAS- local
10.20.220.2 00-02-FC-E1-68-EC 220 --SLB-- local
10.20.210.100 00-02-FC-E1-68-EB 0 VSERVER local
10.20.220.10 00-D0-B7-A0-81-D8 220 REAL up(0 misses)
10.20.221.1 00-02-FC-CB-70-0A 221 GATEWAY up(0 misses)
10.20.221.5 00-02-FC-E1-68-EC 221 --SLB-- local
10.20.220.20 00-D0-B7-A0-81-D8 220 REAL up(0 misses)
10.20.221.100 00-02-FC-E1-68-EB 0 VSERVER local
Cat6k-2# sh mod csm 5 vser
vserver type prot virtual vlan state conns
---------------------------------------------------------------------------
VIP1 SLB TCP 10.20.221.100/32:23 221 OPERATIONAL 1
VIP2 SLB TCP 10.20.210.100/32:23 210 OPERATIONAL 1
Cat6k-2# sh mod csm 5 conn detail
prot vlan source destination state
----------------------------------------------------------------------
In TCP 221 10.20.1.100:44240 10.20.221.100:23 ESTAB
Out TCP 210 10.20.210.10:23 10.20.1.100:44240 ESTAB
vs = VIP1, ftp = No, csrp = False
In TCP 210 10.20.210.10:45885 10.20.210.100:23 ESTAB
Out TCP 220 10.20.220.10:23 10.20.210.10:45885 ESTAB
vs = VIP2, ftp = No, csrp = False
# The previous command shows a connection opened from a client coming in from VLAN 221
# (client is 10.20.1.100). That connection goes to virtual IP address 1 (VIP1) and is
# balanced to 10.20.210.10. Another connection is opened from server 10.20.210.10, goes to
# VIP2 and is balanced to 10.20.220.10
Route Health Injection
The CSM supports virtual servers in any IP subnet. If a virtual server is configured in a subnet that is not
directly attached to the MSFC, you can configure the CSM to inject a static route into the MSFC routing
tables, depending on the health of the server farm serving that virtual server.
You can use this mechanism also for disaster recovery or GSLB solutions, where two distinct CSMs
inject a static route for the same VIP. The static routes can then be redistributed, eventually with different
costs, to prefer a specific location.
module ContentSwitchingModule 5
vlan 220 server
ip address 10.20.220.2 255.255.255.0
alias 10.20.220.1 255.255.255.0
!
vlan 221 client
ip address 10.20.221.5 255.255.255.0
gateway 10.20.221.1
alias 10.20.221.2 255.255.255.0

Cisco Catalyst 6500 Series Specifications

General

Brand	Cisco
Model	Catalyst 6500 Series
Category	Switch
Language	English