Re: "send-label" and "mpls bgp fwd"

After some more study ( basically i am simulating option B as of now) ; I
find following :

1) When we are activating MP-ebgp (vpnv4) on the path that is not ldp
enabled ; the command "mpls bgp fwd" get
     enabled automatically

2) When we are activating ipv4 ebgp by send-label command on the interface
not running LDP ; the command "mpls bgp forwarding" get enabled
automatically

Some more work is needed on figuring out when and when not to be using
send-label .

On 6 June 2014 17:15, GAURAV MADAN <gauravmadan1177_at_gmail.com> wrote:

> Hi Team
>
> Can some one point out to a good document / blog that help me understand
> these 2 more clearly in IOS .
>
> What i understood :
>
> *mpls bgp fwd* :
>
> this is used in case of BGP+label and is generally automatically enabled
> command. This is when we dont have LDP / RSVP running and we have to rely
> on BGP for labels.
> This is used in case of bgp in following cases for instance :
>
> r1 ------r2
> lets say i am working for option b and i want to enable vpnv4 b/w r1 and
> r2 , I n this case since i am expecting bgp + label between these 2 ; IOS
> automatically enables command for me on interface joining r1 and r2
>
> *bgp send-label*
>
> As per me ; this again is used to build the transport label when we dont
> have a LDP / RSVP to get us the labels.
> But this can be in i-bgp or a e-bgp scenario .
>
> can someone please help me understand what is to be used where .
>
> Thanks in advance

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Received on Sat Jun 07 2014 - 00:33:51 ART