Routing
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Routing

MSDP import and export

‎07-05-2014 11:01 PM

Hi all.

 

I have a topoloy like that

 

RP-01----<msdp-peer>--------->RP-02-----<msdp-peer>------------>RP03----<msdp-peer>--------->RP-01

 

RP-01 is originator of this multicast group (10.10.170.70,225.10.10.7), and via SA message, RP-02 has this multicast group.

 

And then, on RP-02, I configure this policy

show policy-options policy-statement TEST-IMPORT-SA
term 1A {
from {
route-filter 225.10.10.17/32 exact;
source-address-filter 10.10.170.70/32 exact;
}
then reject;
}
then accept;

---

And the, I import this policy into MSDP configuration of RP-02

 

show routing-instances R1-VR1 protocols msdp
import TEST-IMPORT-SA;
peer 1.1.1.8 {
local-address 1.1.1.5;
}
peer 1.1.1.11 {
local-address 1.1.1.5;
}

//My purpose is to pevent RP-02 from learning this multicast group from RP-01, but when I show msdp source-active from RP-02, I still see this group. So I want to ask about what are purposes of import and export in MSDP protocol?

4 REPLIES 4
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Routing

Re: MSDP import and export

‎08-14-2014 03:40 AM

Check your group. Maybe it's a typo?

 

 

"RP-01 is originator of this multicast group (10.10.170.70,225.10.10.7),"

 

 

 

term 1A {
from {
route-filter 225.10.10.17/32 exact;
source-address-filter 10.10.170.70/32 exact;
}

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Routing

Re: MSDP import and export

‎08-19-2014 07:20 AM

THanks for your correction. But now, it has this information. (I changed to another group)


root@SRSX240-01> show msdp source-active
Group address Source address Peer address Originator Flags
239.192.0.50 172.30.1.10 1.1.1.6 1.1.1.6 Accept,Filtered

 

policy-statement TEST-SA-IMPORT {
term 1A {
from {
route-filter 239.192.0.50/32 exact;
}
then reject;
}
then accept;
}

 

root@SRSX240-01# show protocols msdp
import TEST-SA-IMPORT;
peer 1.1.1.6 {
local-address 1.1.1.4;
}

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Routing
Solution
Accepted by topic author hoand
‎08-26-2015 01:27 AM

Re: MSDP import and export

‎08-19-2014 07:56 AM
root@SRSX240-01> show msdp source-active
Group address   Source address  Peer address Originator  Flags
239.192.0.50    172.30.1.10     1.1.1.6      1.1.1.6     Accept,Filtered

 

The SA message was accepted (the RPF-check didn't reject it) but filtered (by your import policy).

 

You can run the command : show msdp source

 

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Routing

Re: MSDP import and export

‎08-21-2014 08:31 AM

Thanks so much, it seems to work Smiley Happy