[j-nsp] SRX 550 BGP Flapping

Tue Jan 30 01:30:16 EST 2018

Thanks for the reply.
Can you please help me how can I check and correct this ?

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On Tue, Jan 30, 2018 at 11:25 AM, Emille Blanc <emille at abccommunications.com
> wrote:

> You might want to check the MTU of the path, or ensure that pmtu is
> enabled.
> It looks like you're using a redundant ethernet interface (reth). If
> you're using a non-standard MTU, make sure it is set correctly for its
> member interface(s).
>
> ________________________________________
> From: juniper-nsp [juniper-nsp-bounces at puck.nether.net] On Behalf Of
> sameer mughal [pcs.sameer1 at gmail.com]
> Sent: Monday, January 29, 2018 8:20 PM
> To: juniper-nsp at puck.nether.net
> Subject: Re: [j-nsp] SRX 550 BGP Flapping
>
> I have seen hold time error. what will be the fix on this issue?
>
> show bgp neighbor xx.xx.xx.xx
> Peer: xx.xx.xx.xx+179 AS xxxx  Local: xx.xx.xx.xx+56228 AS xxxx
>   Type: External    State: Established    Flags: <Sync>
>   Last State: OpenConfirm   Last Event: RecvKeepAlive
>   Last Error: Hold Timer Expired Error
>   Export: [ IMPORT-LAN-INTO-BGP ] Import: [ Reject-BGP ]
>   Options: <Preference LocalAddress AuthKey PeerAS Refresh>
>   Options: <AdvertisePeerAs>
>   Authentication key is configured
>   Local Address: xx.xx.xx.xx Holdtime: 90 Preference: 170
>   Number of flaps: 30
>   Last flap event: HoldTime
>   Error: 'Hold Timer Expired Error' Sent: 30 Recv: 0
>   Peer ID: xx.xx.xx.xx Local ID: xx.xx.xx.xx       Active Holdtime: 90
>   Keepalive Interval: 30         Group index: 0    Peer index: 0
>   BFD: disabled, down
>   Local Interface: reth2.0
>   NLRI for restart configured on peer: inet-unicast
>   NLRI advertised by peer: inet-unicast
>   NLRI for this session: inet-unicast
>   Peer supports Refresh capability (2)
>   Stale routes from peer are kept for: 300
>   Peer does not support Restarter functionality
>   Peer does not support Receiver functionality
>   Peer does not support LLGR Restarter or Receiver functionality
>   Peer supports 4 byte AS extension (peer-as xx.xx.xx.xx)
>   Peer does not support Addpath
>   Table inet.0 Bit: 10000
>     RIB State: BGP restart is complete
>
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> On Tue, Jan 30, 2018 at 9:14 AM, sameer mughal <pcs.sameer1 at gmail.com>
> wrote:
>
> > Hi,
> > Can anyone help me on this bgp flapping issue?
> >
> > show bgp summary
> > Groups: 1 Peers: 1 Down peers: 0
> > Table          Tot Paths  Act Paths Suppressed    History Damp State
> > Pending
> > inet.0
> >                       37         31          0          0          0
> >     0
> > Peer                     AS      InPkt     OutPkt    OutQ   Flaps Last
> > Up/Dwn State|#Active/Received/Accepted/Damped...
> > xx.xx.xx.xx         9541         86         70       0      *30 *
> >  28:28 31/37/36/0           0/0/0/0
> >
> > {primary:node0}
> >
> > Peer: xx.xx.xx.xx +179 AS 9541 Local: xx.xx.xx.xx +56228 AS 64520
> >   Type: External    State: Established    Flags: <Sync>
> >   Last State: OpenConfirm   Last Event: RecvKeepAlive
> >   Last Error: Hold Timer Expired Error
> >   Export: [ IMPORT-LAN-INTO-BGP ] Import: [ Reject-BGP ]
> >   Options: <Preference LocalAddress AuthKey PeerAS Refresh>
> >   Options: <AdvertisePeerAs>
> >   Authentication key is configured
> >   Local Address: 192.168.111.74 Holdtime: 90 Preference: 170
> >   Number of flaps: 30
> >   Last flap event: HoldTime
> >   Error: 'Hold Timer Expired Error' Sent: 30 Recv: 0
> >   Peer ID: xx.xx.xx.xx Local ID: xx.xx.xx.xx        Active Holdtime: 90
> >   Keepalive Interval: 30         Group index: 0    Peer index: 0
> >   BFD: disabled, down
> >   Local Interface: reth2.0
> >   NLRI for restart configured on peer: inet-unicast
> >   NLRI advertised by peer: inet-unicast
> >   NLRI for this session: inet-unicast
> >   Peer supports Refresh capability (2)
> >   Stale routes from peer are kept for: 300
> >   Peer does not support Restarter functionality
> >   Peer does not support Receiver functionality
> >   Peer does not support LLGR Restarter or Receiver functionality
> >   Peer supports 4 byte AS extension (peer-as 9541)
> >   Peer does not support Addpath
> >   Table inet.0 Bit: 10000
> >     RIB State: BGP restart is complete
> >     Send state: in sync
> >     Active prefixes:              31
> >     Received prefixes:            37
> >     Accepted prefixes:            36
> >     Suppressed due to damping:    0
> >     Advertised prefixes:          48
> >   Last traffic (seconds): Received 28   Sent 10   Checked 58
> >   Input messages:  Total 80     Updates 30      Refreshes 0     Octets
> 2749
> >   Output messages: Total 64     Updates 5       Refreshes 0     Octets
> 1618
> >   Output Queue[0]: 0            (inet.0, inet-unicast)
> >
> >
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