Re: Conditional Advertise

Hi, mine doesn't work :) i am labbing it up ... will let u know

Ahmed

On Sat, Aug 29, 2009 at 11:59 AM, Sagar Rane <sagar.ccie_at_gmail.com> wrote:

> Hi Ahmed,
>
> I have tried it and it doesn't work, just see that logic, the exist match
> crieteria is met , avertise map will advertised it. Now give it a thought,
> if only tracl1 prefix is avilable , it meets the condition from route-map
> line 0 and doesn't go to line 20.
>
> Hence 192.168 is advertised.
>
> Have you tried it and has it worked for you?
>
> Regards,
> Sagar
>
> On Sat, Aug 29, 2009 at 7:21 AM, Ahmed Ejaz <aahmedejaz_at_gmail.com>wrote:
>
>> 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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>>>>
>>>>
>>>
>>>
>>> --
>>>
>>> Sent from Cochin, KL, India
>>> Dalton Camp <http://www.quotationspage.com/quote/26252.html> -
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Received on Sat Aug 29 2009 - 12:04:14 ART