[j-nsp] Convert Cisco BGP configs to Juniper (M10i)

[a.dhingra at neu.edu]

inline...




"Chen, Qinxue" <QChen at corp.untd.com> 
Sent by: juniper-nsp-bounces at puck.nether.net
03/30/2006 01:52 PM

To
"Pete Crocker" <pete at petecrocker.com>, <juniper-nsp at puck.nether.net>
cc

Subject
Re: [j-nsp] Convert Cisco BGP configs to Juniper (M10i)






Thanks a lot.

It looks like the conversion lost several important things:

1) For Cisco side "update-source Loopback0", may I use "local-address 
x.x.x.x" on Juniper?

Yes.

2) For Cisco side "send-community", is this a default behavior on Juniper?

Yes.

3) For Cisco side "no synchronization", is this a default behavior on 
Juniper?

Actually Juniper does not support "synchroniztion"

4) For the same peer-group, the outbound policies should be the same. 
Should we move the outbound policies out of the neighbor section and apply 
them at the group level? In the conversion, it looks like you can have 
different outbound policies for different neighbors in the same 
peer-group. 

I am not sure if you got this in the conversion but if you want to make 
the peer-group a route reflector group then you need " cluster <local-ip>"

As far as the policy you can do either, it is probably cleaner to have it 
at the group level.  You can't do both.


Am I right?

Thanks

Qinxue

-----Original Message-----
From: Pete Crocker [mailto:pete at petecrocker.com]
Sent: Thursday, March 30, 2006 10:07 AM
To: Chen, Qinxue; juniper-nsp at puck.nether.net
Subject: Re: [j-nsp] Convert Cisco BGP configs to Juniper (M10i)


If you have access to Juniper's support site, use the I2J tool, which does
the conversion for you:

https://i2j.juniper.net/release/index.jsp

Here's the output from your config. It should be tweaked a little bit
though.

routing-options {
    autonomous-system 666;
}
protocols {
    bgp {
        log-updown;
        group Reflector {
            type external;
            peer-as 777;
            neighbor 1.2.3.4 {
                export [ bgp-redistributes bgp-policies-Reflector-1-export
];
                import bgp-policies-Reflector-1-import;
            }
        }
    }
}
policy-options {
    policy-statement bgp-policies-Reflector-1-export {
        term next-hop-self {
            then {
                next-hop self;
                next term;
            }
        }
        term explicit-default-action {
            then next policy;
        }
    }
    policy-statement bgp-policies-Reflector-1-import {
        term term-1 {
            from policy ( ! rm-MapY );
            then reject;
        }
        term explicit-default-action {
            then next policy;
        }
    }
    policy-statement bgp-redistributes {
        term direct {
            from {
                policy rm-MapX;
                protocol direct;
            }
            then accept;
        }
        term static {
            from {
                policy rm-MapX;
                protocol static;
            }
            then accept;
        }
        term from-bgp {
            from protocol bgp;
            then next policy;
        }
        term ios-implicit-deny {
            then reject;
        }
    }
    policy-statement rm-MapX {
        term ios-implicit-deny {
            then reject;
        }
    }
    policy-statement rm-MapY {
        term ios-implicit-deny {
            then reject;
        }
    }
}



> From: "Chen, Qinxue" <QChen at corp.untd.com>
> Date: Thu, 30 Mar 2006 09:58:19 -0800
> To: <juniper-nsp at puck.nether.net>
> Conversation: [j-nsp] JunOS BGP Soft Reset Alert
> Subject: Re: [j-nsp] Convert Cisco BGP configs to Juniper (M10i)
> 
> Correction: What's the corresponding config on Juniper?
> 
> -----Original Message-----
> From: juniper-nsp-bounces at puck.nether.net
> [mailto:juniper-nsp-bounces at puck.nether.net]On Behalf Of Chen, Qinxue
> Sent: Thursday, March 30, 2006 9:46 AM
> To: juniper-nsp at puck.nether.net
> Subject: [j-nsp] Convert Cisco BGP configs to Juniper (M10i)
> 
> 
> 
> Hi,
> 
> I'm new to Juniper. I have the following Cisco BGP config:
> 
> router bgp xxxx
>  no synchronization
>  bgp log-neighbor-changes
>  redistribute connected route-map MapX
>  redistribute static route-map MapX
>  neighbor Reflector peer-group
>  neighbor Reflector remote-as xxxx
>  neighbor Reflector update-source Loopback0
>  neighbor Reflector version 4
>  neighbor Reflector next-hop-self
>  neighbor Reflector send-community
>  neighbor Reflector route-map MapY in
>  neighbor Reflector maximum-prefix 300000 80 warning-only
>  neighbor a.b.c.d peer-group Reflector
> 
> 
> What's the corresponding config on Cisco?
> 
> Thanks
> 
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