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New Member

Can CSS115XX have 2 service group with different upstream?

Hi,

  Just to ask if CSS can support the architect that 2 service group with different upstream.

  It seems if I set a default route then I can have only one upstream routing path.

  Thanks.

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5 REPLIES
Cisco Employee

Re: Can CSS115XX have 2 service group with different upstream?

you can configure mulitple gateway/upstream.

The CSS by default select the correct route....the one that corresponds to the inbound request.

So, if request came in from upstream-A the response will be sent through that same upstream.

This behavior can be modified with the following command :

CSS11503-2(config)# ip ecmp ?
  address             Choose among alternate paths based on IP addresses
  no-prefer-ingress   Do not prefer the ingress port for the reverse path
                      egress
  roundrobin          Alternate between equal paths in a roundrobin fashion
CSS11503-2(config)# ip ecmp

Gilles.

New Member

Re: Can CSS115XX have 2 service group with different upstream?

Hi Gilles,

  Many thanks to your reply. 

  By the way, how to configure multiple gateway? 

  The original configuration has one gateway and applied a static default route to the original upstream like below:

  ip route 0.0.0.0 0.0.0.0 172.23.2.2541

  and thus direct the flow to only one upstream...

  Do I need to remove the static default route?

Cisco Employee

Re: Can CSS115XX have 2 service group with different upstream?

Simply added a 2nd static route for the 2nd upstream.

Gilles.

New Member

Re: Can CSS115XX have 2 service group with different upstream?

Hi Gilles,

    Do you mean add static route and configure as below?

    ip route 0.0.0.0 0.0.0.0 172.23.2.254 1

    ip route 0.0.0.0 0.0.0.0 192.168.200.250 1

    ip ecmp address

     Thanks.

Cisco Employee

Re: Can CSS115XX have 2 service group with different upstream?

correct.

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