09-11-2003 07:46 AM
we bought 2 css 11501 and i am trying to configure them to do b2b redundancy.
I followed the link for the b2b configuration and here is our config
!*************************** GLOBAL ***************************
no restrict web-mgmt
ip redundancy
snmp name
snmp contact
snmp location
ip route 0.0.0.0 0.0.0.0 10.12.87.254 1
!************************* INTERFACE *************************
interface e1
phy 100Mbits-FD
description "Connects to 4006"
interface e8
bridge vlan 2
!************************** CIRCUIT **************************
circuit VLAN1
redundancy
ip address 10.12.87.200 255.255.255.0
circuit VLAN2
ip address 192.168.0.1 255.255.255.0
redundancy-protocol
!************************** SERVICE **************************
service 1
ip address 10.12.87.131
keepalive type tcp
keepalive port 80
active
service 2
ip address 10.12.87.38
keepalive type tcp
keepalive port 80
active
!*************************** OWNER ***************************
owner SMHN
content Test-config
add service 1
add service 2
vip address 10.12.87.201
active
!*************************** GROUP ***************************
group servers
add destination service 1
add destination service 2
vip address 10.12.87.201
active
When the master is up I can get to the web pages but
When I turn off the primary box the backup css becomes the master but I can't get to our web page.
Thanks,
gilbert
09-11-2003 08:28 AM
There was a bug in the B2B redundancy code at one point where the CSS would not gratuitious arp for the VIP address(es) when a failover occurs.
It would arp for the circuit address however.
To see if this is the problem, try clearing the next hop router's arp cache. (assuming there is a router between the client and CSS.)
09-11-2003 03:24 PM
I actually found the problem My configs was not totally the same for both boxes. Although I too eas thinking it was a arp issue. THanks for the response.
09-11-2003 08:29 AM
I would also recommend that you take a look at VIP/Interface redundancy as an alternative to B2B. My experience is that it works much better.
09-11-2003 03:29 PM
thanks for the reply. I did get the b2b to work but as you said it is not good. I actually tried a few failover scenarios with the b2b and it was not that bad but hoping for a better failover. I did try this VIP/interface but did not work. Will be troubleshooting now as to what i did wrong. I might also try the ASR.
thanks,
gilbert
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