ACE's mac-sticky equivalent on CSS

Unanswered Question
Apr 24th, 2008
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Been working only on ACE equipment and now I have to solve a mac sticky problem, but on a CSS instead.


mac-sticky is enabled on a vlan interface on an ACE in bridged mode, it make sure that all traffic sourced on that interface is destined back through the same interface.


My question is how would I solve this with CSS if you could paste a sample config It would be greatly appreciated!


//tyrone

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Gilles Dufour Fri, 04/25/2008 - 00:51
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  • Cisco Employee,

Not really an equivalent but the following command is often required on the CSS when configured in bridge mode.


CSS11503-2(config)# ip uncond-bridging


This tells the CSS to first bridge and only route if needed.


Gilles.

770801tvdhaar Tue, 04/29/2008 - 06:00
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Hi this didn't help me in my quest,

How can I allow the return traffic to come through the same interface? if I add an ip route 0.0.0.0 0.0.0.0 194.132.xxx.236 my setup works fine but the other subnets are affected obiviously because there is 2 default route configured


How can I get around this?

I have the following:


ip route 0.0.0.0 0.0.0.0 194.132.xxx.222 1



************************* INTERFACE *************************

interface e1

phy 100Mbits-FD

bridge vlan 30


interface e2

bridge vlan 92

phy 100Mbits-FD


interface e3

phy 100Mbits-FD

bridge vlan 70


interface e4

phy 100Mbits-FD

admin-shutdown


interface e5

phy 100Mbits-FD

bridge vlan 15


interface e6

admin-shutdown


interface e7

admin-shutdown

bridge vlan 11


interface e8

phy 100Mbits-FD

bridge vlan 11



!************************** CIRCUIT **************************

circuit VLAN30

redundancy

ip address 194.132.xxx.68 255.255.255.224


circuit VLAN92

redundancy

ip address 192.168.xxx.1 255.255.255.0


circuit VLAN70

redundancy

ip address 194.132.xxx.218 255.255.255.224

no redirects


circuit VLAN11

ip address 192.168.99.85 255.255.255.252

redundancy-protocol


circuit VLAN15

redundancy

ip address 194.132.xxx.226 255.255.255.240



Gilles Dufour Tue, 04/29/2008 - 06:29
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  • Cisco Employee,

there is no mac-sticky equivalent on the CSS.

The only thing you can control is ecmp.

http://www.cisco.com/en/US/docs/app_ntwk_services/data_center_app_services/css11500series/v7.20/configuration/administration/guide/Protocol.html


"By default, the ingress path for a flow is the preferred egress path. This means that the preferred interface over which to reply to a client is the interface on which the CSS originally received the request from the client. "


For this to work, you need to add this 2nd route.


Gilles.

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