CSS11501 and Catalyst 3550 configuration

Hello all,

I have a question on the configuration required for the following set up using CSS11501 loadbalancers and 48 port Catalyst 3550 L3 switches.

I have 2 x CSS11501 and 2 x Catalyst 3550's. Redundant VIP's exist on each side of the CSS11501's. I am also using VLAN's.

I want to connect each CSS11501 to each 3550, but have no direct cross connect between the two CSS11501's.

Would the following configuration work and provide full redundancy in the event that either CSS or either Catalyst failed ? No dynamic IP routing will be used. On the Catalyst 3550's the default static route will be to the VIP of the CSS 11501's. On the CSS11501's static routes will be pointed to the Catalyst 3550's with a primary route via the first Catalyst and a backup route via the other Catalyst.

Thanks in advance for any help/suggestions.

CSS01 :

interface e7 description "Internal Network - Cisco 3550-1" phy 100Mbits-FD bridge vlan 30 interface e8 description "Internal Network - Cisco 3550-2" phy 100Mbits-FD bridge vlan 30 !************************** CIRCUIT ************************** circuit VLAN30 description "Internal Network"

ip address 10.11.160.100 255.255.255.0 ip virtual-router 1 priority 90 preempt ip redundant-interface 1 10.11.160.99 ip critical-service 1 VRRP-KAL no redirects

CSS02 :

interface e7 description "Internal Network - Cisco 3550-1" phy 100Mbits-FD bridge vlan 30 interface e8 description "Internal Network - Cisco 3550-2" phy 100Mbits-FD bridge vlan 30 !************************** CIRCUIT ************************** circuit VLAN30 description "Internal Network"

ip address 10.11.160.101 255.255.255.0 ip virtual-router 1 priority 100 ip redundant-interface 1 10.11.160.99 ip critical-service 1 VRRP-KAL no redirects

3550-1 :

interface FastEthernet0/47 switchport access vlan 30 switchport trunk native vlan 30 switchport mode access speed 100 duplex full spanning-tree portfast

interface FastEthernet0/48 switchport access vlan 30 switchport trunk native vlan 30 switchport mode access speed 100 duplex full spanning-tree portfast

interface Vlan30 ip address 10.11.160.102 255.255.255.0 no ip redirects

3550-2 :

interface FastEthernet0/47 switchport access vlan 30 switchport trunk native vlan 30 switchport mode access speed 100 duplex full spanning-tree portfast

interface FastEthernet0/48 switchport access vlan 30 switchport trunk native vlan 30 switchport mode access speed 100 duplex full spanning-tree portfast

interface Vlan30 ip address 10.11.160.103 255.255.255.0 no ip redirects

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Simon
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