Solved: CSS 11503 in Active Active mode

Ahmed Shahzad · ‎10-21-2008

Can we configure CSS 11503 in Active/Active mode, means can multiple context would be configured?

Thanks & Regards,

Shahzad.

Syed Iftekhar Ahmed · ‎10-21-2008

Here you go

Assumptions:

VIP 10.10.10.100 is Master on the CSS 2 and backup on the CSS1

VIP 10.10.10.101 is Master on the CSS1 and backup on the CSS1

Vlan 10 is the Server Vlan (Redundant Interfaces here)

Vlan 20 is the Client vlan (Redundant Vips here)

Services for VIP 10.10.10.100 (real server) have default gateway pointing to redundant interface 172.20.40.253

Services for VIP 10.10.10.101 (real server) have default gateway pointing to redundant interface 172.20.40.254

CSS #1

circuit VLAN10

ip address 172.20.40.1 255.255.255.0

ip virtual-router 1 priority 101 preempt

ip virtual-router 2

ip-redundant-interface 1 172.20.40.253

ip-redundant-interface 2 172.20.40.254

Circuit VLAN20

ip address 10.10.10.1 255.255.255.0

ip virtual-router 3 priority 101 preempt

ip virtual-router 4

ip redundant-vip 3 10.10.10.101

ip redundant-vip 4 10.10.10.100

CSS #2

circuit VLAN10

ip address 172.20.40.2 255.255.255.0

ip virtual-router 1

ip virtual-router 2 priority 101 preempt

ip-redundant-interface 1 172.20.40.253

ip-redundant-interface 2 172.20.40.254

Circuit VLAN20

ip address 10.10.10.2 255.255.255.0

ip virtual-router 3

ip virtual-router 4 priority 101 preempt

ip redundant-vip 3 10.10.10.101

ip redundant-vip 4 10.10.10.100

More details at

http://www.cisco.com/en/US/docs/app_ntwk_services/data_center_app_services/css11500series/v8.20_v8.10/configuration/redundancy/guide/VIPRedun.html#wp1112245

Syed Iftekhar Ahmed

View solution in original post

Syed Iftekhar Ahmed · ‎10-21-2008

There are no contexts in CSS but active/active can be configured on VIP basis.

Meaning One CSS willl be active for APP1-VIP and other CSS would be active for APP2-VIP.

This will give you an example

http://www.cisco.com/en/US/products/hw/contnetw/ps792/products_configuration_example09186a00802206a3.shtml

Syed Iftekhar Ahmed

Ahmed Shahzad · ‎10-21-2008

Thanks boss; can you have the similar example where CSS is configured in Bridge Mode.

Regards,

Shahzad.

Syed Iftekhar Ahmed · ‎10-21-2008

Shahzad

VIP/Interface redundancy is not recommended for bridge mode deployments. CSS in inline bridge mode with vip based redundancy is vulnerable to bridging loops.

With inline bridging BOX-to-Box redundancy (Active/standby) is the recommended method.

Syed Iftekhar Ahmed

Ahmed Shahzad · ‎10-21-2008

Dear Iftikhar,

Since I am in the designing phase and there is no specific customer requirement to place CSS in Bridge or Routed Mode or One-Arm Mode. I can plan in Routed Mode, to achieve Active/Active which is the requirement of customer. Do you have an example configuring inline routed mode to CSS?

Thanks and Regards,

Shahzad.

Syed Iftekhar Ahmed · ‎10-21-2008

Here you go

Assumptions:

VIP 10.10.10.100 is Master on the CSS 2 and backup on the CSS1

VIP 10.10.10.101 is Master on the CSS1 and backup on the CSS1

Vlan 10 is the Server Vlan (Redundant Interfaces here)

Vlan 20 is the Client vlan (Redundant Vips here)

Services for VIP 10.10.10.100 (real server) have default gateway pointing to redundant interface 172.20.40.253

Services for VIP 10.10.10.101 (real server) have default gateway pointing to redundant interface 172.20.40.254

CSS #1

circuit VLAN10

ip address 172.20.40.1 255.255.255.0

ip virtual-router 1 priority 101 preempt

ip virtual-router 2

ip-redundant-interface 1 172.20.40.253

ip-redundant-interface 2 172.20.40.254

Circuit VLAN20

ip address 10.10.10.1 255.255.255.0

ip virtual-router 3 priority 101 preempt

ip virtual-router 4

ip redundant-vip 3 10.10.10.101

ip redundant-vip 4 10.10.10.100

CSS #2

circuit VLAN10

ip address 172.20.40.2 255.255.255.0

ip virtual-router 1

ip virtual-router 2 priority 101 preempt

ip-redundant-interface 1 172.20.40.253

ip-redundant-interface 2 172.20.40.254

Circuit VLAN20

ip address 10.10.10.2 255.255.255.0

ip virtual-router 3

ip virtual-router 4 priority 101 preempt

ip redundant-vip 3 10.10.10.101

ip redundant-vip 4 10.10.10.100

More details at

http://www.cisco.com/en/US/docs/app_ntwk_services/data_center_app_services/css11500series/v8.20_v8.10/configuration/redundancy/guide/VIPRedun.html#wp1112245

Syed Iftekhar Ahmed