Re: Conditional Advertise

I think the goal is to advertise the 192 route if both 10 and 20 networks in
the routing table exist. What you have mentioned is same as my config i-e I
am matching 2 networks in one prefix list and you are matching 2 networks in
2 prefix lists but the route-map will do the same as both the matches are
made in a single statement. If the requirement was to advertise the 192
network if either 10 or 20 exist (one of them) then the route map would
change for example:

route-map ADVERTISE permit 10
match ip address prefix TRACK1

route-map ADVERTISE permit 20
match ip address prefix TRACK2

REgards

Ahmed.

On Sat, Aug 29, 2009 at 11:15 AM, Divin Mathew John <divinjohn_at_gmail.com>wrote:

> Wont this trigger the advertise-map if one route is there in the routing
> table?
>
> i thinkthis would do the dew.
>
> ip prefix-list TRACK1 permit 10.1.1.0/24
> ip prefix-list TRACK2 permit 20.2.2.2/32
> ip prefix-list ADVER permit 192.168.10.0/24
>
> route-map ADVERTISE permit 10
> match ip address prefix ADVER
>
> route-map EXIST match-all permit 10
> match ip address prefix TRACK1
> match ip address prefix TRACK2
>
> router bgp xyz
> advertise-map ADVERTISE exist-map EXIST
>
>
> On Sat, Aug 29, 2009 at 11:42 AM, Ahmed Ejaz <aahmedejaz_at_gmail.com> wrote:
>
>> Try this:
>>
>> ip prefix-list TRACK permit 10.1.1.0/24
>> ip prefix-list TRACK permit 20.2.2.2/32
>> ip prefix-list ADVER permit 192.168.10.0/24
>>
>> route-map ADVERTISE permit 10
>> match ip address prefix ADVER
>>
>> route-map EXIST permit 10
>> match ip address prefix TRACK
>>
>> router bgp xyz
>> advertise-map ADVERTISE exist-map EXIST
>>
>> HTH
>>
>> Ahmed
>>
>> On Sat, Aug 29, 2009 at 10:57 AM, Sagar Rane <sagar.ccie_at_gmail.com>
>> wrote:
>>
>> > Hi All,
>> >
>> > I have requirement where, bgp should check its bgp routing table for two
>> > routes eq (10.1.1.0/24 and 20.2.2.2/32) and only if both routes are
>> > present,
>> > it should originate a route advertisement of 192.168.10.0/24.
>> >
>> > I have tried advertise-map and exist map, but how can we used exist-map
>> to
>> > check both the routes at the same time?
>> >
>> > Anyway how we can meet this requirement please let me know.
>> >
>> > Regards,
>> > Sagar
>> >
>> >
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>
>
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Received on Sat Aug 29 2009 - 11:21:53 ART