I am not doing any hair-pinning on the device.

I do have icmp redirects disabled on all interfaces, however.

Thanks,
Daniel

From: Jody Botham <[email protected]>
Date: Wednesday, November 16, 2016 at 12:25 PM
To: Daniel Stephens <[email protected]>, Ryan Harden <[email protected]>
Cc: "[email protected]" <[email protected]>
Subject: Re: [f-nsp] Brocade XMR / Juniper iBGP Interoperability

Are you doing any hair-pinning of traffic on the XMR in/out a VLAN on the same 
physical interface? NetIron generates an ICMP redirect by default in this 
situation which with lots of traffic can kill the lp. Check if you've disabled 
icmp redirects.

On Wed, 16 Nov 2016 at 17:15, Daniel Stephens 
<[email protected]<mailto:[email protected]>> wrote:
I will need to capture the debug data when attempting to bring the session back 
up, but since these two networks are production, I am limited in the time 
frames I can do so due to it becoming service affecting when the sessions all 
drop.

I do not have the exact output of “show cpu lp X”, but graphs I have of the 
processor on the management module and line cards show both going up to roughly 
80-90% during the event.

Thanks,
Daniel

On 11/16/16, 12:10 PM, "Ryan Harden" 
<[email protected]<mailto:[email protected]>> wrote:

    What does ‘show cpu lp X’ say during the error/failure state?

    /Ryan

    Ryan Harden
    Research and Advanced Networking Architect
    University of Chicago - ASN160
    P: 773.834.5441




    > On Nov 16, 2016, at 10:52 AM, Daniel Stephens 
<[email protected]<mailto:[email protected]>> wrote:
    >
    > Hi Jörg,
    >
    > The line card does not reset. Under show logging during the event, the 
only thing are OSPF neighbor changes when they drop and reestablish.
    >
    > SSH@xmr01#sh ip bgp nei $MX_IP last-packet-with-error decode
    > No received packet with error logged for neighbor $MX_IP
    > SSH@xmr01#
    >
    > On the upstream carrier BGP neighbor, when it reset, the XMR reported the 
following –
    >
    > Notification Sent:     Hold Timer Expired
    > Notification Received: Cease/Connection Rejected
    >
    > Thanks,
    > Daniel
    >
    >
    > From: Jörg Kost <[email protected]<mailto:[email protected]>>
    > Date: Wednesday, November 16, 2016 at 11:41 AM
    > To: Daniel Stephens <[email protected]<mailto:[email protected]>>
    > Cc: "[email protected]<mailto:[email protected]>" 
<[email protected]<mailto:[email protected]>>
    > Subject: Re: [f-nsp] Brocade XMR / Juniper iBGP Interoperability
    >
    > Hi,
    > does the line card reset?
    > Also any output from
    > show logging
    > or bgp, e.g.
    > sh ip bgp neighbors $neighbor last-packet-with-error decode
    > may be helpful.
    > Jörg
    > On 16 Nov 2016, at 17:10, Daniel Stephens wrote:
    > Hi everyone,
    >
    > I am having a strange issue with our Brocade XMRs when I attempt to 
exchange routes between a new set of Juniper MX iBGP peers and was looking to 
see if anyone had any recommendations.
    >
    > The Brocade XMRs have two line cards, a 20-port 1G and a 4-port 10G card 
installed, and are running 5.6.0d firmware.
    >
    > We are integrating two existing networks as a consolidation, with the one 
network running Brocade XMR and the other running Juniper MX routers. The issue 
surfaced on the XMRs when we removed route filters on the iBGP sessions between 
the XMR and MX routers. When lifting the filters and sending routes from the 
XMR towards the MX, everything is functioning as normal and the MX correctly 
learn the routes. Our issue becomes when we lift the filter and send routes 
from the MX towards the XMR. The XMR begins to load the routes correctly, and 
at some point during this process, the XMR stops forwarding traffic on the 
4-port 10G line card entirely (the card to which the MX routers interconnect), 
and all BGP sessions associated with that line card flap, and OSPF adjacencies 
drop and re-establish.
    >
    > I am using the ipv4-ipv6-2 CAM partition profile on the XMR devices. 
Total number of routes attempting to be passed is a full table of roughly 610K 
routes.
    >
    > Even when I remove an XMR unit from service and attempt to load routes 
from the MX into the XMR, the same anomaly occurs.
    >
    > Any assistance would be greatly appreciated.
    >
    > Thanks,
    > Daniel
    > _______________________________________________
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    > Jörg Kost
    > Hofmeir Media GmbH
    > Kranzhornstr. 3
    > 81825 München
    > Tel: 089/48002910
    > Fax: 089/4487505
    > [email protected]<mailto:[email protected]>
    > https://www.premium-datacenter.de
    > https://www.xing.com/profile/Joerg_Kost
    > Geschäftsführer: Dipl.-Ing. (Univ.) Stefan Hofmeir
    > Handelsregister AG München: HRB 130092
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    > http://puck.nether.net/mailman/listinfo/foundry-nsp



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