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08-09-2010 04:00 AM - edited 03-06-2019 12:22 PM
Dear All,
My name is Michael, I'm working at SkyVision golobal ip connectivity company.
Recently when doing show ip bgp summary i've discovered something new:
<neighbor IP> 4 <neighbor as> 10 21914 1 0 599 00:06:19 1 (SE)
<neighbor IP> 4 <neighbor as> 10 21914 1 0 599 00:06:19 1 (SPE)
<neighbor IP> 4 <neighbor as> 10 21914 1 0 599 00:06:19 1 (PE)
I'd like to know what is the (SE) and (SPE), and (PE) stands for.
Thanks in advance.
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09-23-2010 07:28 AM
The S,P,E output is displayed when there is a route-refresh in progress for that peer.
- the E is displayed if the peer has requested a route-refresh that hasn't been completed yet
- the S is displayed if the refresh for that peer has started
- the P is displayed if BGP is refreshing the neighbor starting at some table version other than zero. It should normally start from zero so you won't see this displayed but if you have multiple peers that are out of sync and they request route-refresh at the same time then you may see the P displayed for them once they are in sync. I wouldn't worry to much about when the P is/is not displayed.
Daniel
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08-09-2010 04:25 AM
Hello,
Those acronyms belong to the Hierarchy on the Service Provider Devices:
PE --> Provider Edge MPLS router
SPE --> Superstratum PE which is the router that act as Route Reflector and the router which the UPE (Underlying PE or formerly known as CE, Customer Edge) router connects to.
I do not know what the SE router is.
Hope this helps.
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08-09-2010 04:38 AM
Is it a Cisco router/switch, if yes .. may i know the platform and IOS..
Regards
Hitesh Vinzoda
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08-09-2010 04:48 AM
Hi,
it's 7200 Cisco router with c7200p-spservicesk9-mz.150-1.M.bin
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08-10-2010 11:03 PM
Guys, anyone?
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08-23-2010 11:25 PM
Any responce?
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08-24-2010 01:05 AM
Michael,
Have a look at the following Internet Draft. Perhaps it will help.
http://tools.ietf.org/html/draft-libin-hierarchy-pe-bgp-mpls-vpn-02
Best regards,
Peter
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08-24-2010 01:18 AM
Peter,
I'm familiar with MPLS
(SPE) and (PE) it could be relevant to that, my concern is about (SE) can't find anywhere what it stands for
.
Thanks in advance
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08-24-2010 01:28 AM
Before everyone starts thinking about it too much, this has nothing to do with MPLS. This probably reflects some changes in code which has introduced some additional states and if possible someone will provide this information over this forum.
Atif
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08-24-2010 01:45 AM
Hi Michael,
could you please provide the whole sh ip bgp summary output including the field headers?
I've always seen the output like
Neighbor V AS MsgRcvd MsgSent TblVer InQ OutQ Up/Down State/PfxRcd
*192.168.3.2 4 50000 2 2 0 0 0 00:00:37 0
i.e., nothing following the State/PfxRcd field.
BR,
Milan
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08-24-2010 02:03 AM
Neighbor V AS MsgRcvd MsgSent TblVer InQ OutQ Up/Down State/PfxRcd
192.168.1.237 4 60000 2139 2355 13683280 0 0 1d11h 4 (SE)
sometime it was (SPE) and (PE) after the prefixes.
And. by the way, after some time it disappeared. I saw it only on one AS, all the rest neighbors and AS never show that.
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09-23-2010 07:28 AM
The S,P,E output is displayed when there is a route-refresh in progress for that peer.
- the E is displayed if the peer has requested a route-refresh that hasn't been completed yet
- the S is displayed if the refresh for that peer has started
- the P is displayed if BGP is refreshing the neighbor starting at some table version other than zero. It should normally start from zero so you won't see this displayed but if you have multiple peers that are out of sync and they request route-refresh at the same time then you may see the P displayed for them once they are in sync. I wouldn't worry to much about when the P is/is not displayed.
Daniel
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09-23-2010 09:53 AM
Thanks Daniel!
Can you please provide link for reading about that, I was looking for a while, but didn't find anything.
Thanks in advance.
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09-23-2010 11:29 AM
Well, I looked in the IOS source code to figure out what the SPE meant....can't really post that here
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09-23-2010 12:05 PM
Got it, thanks for help anyway!
