[c-nsp] Cisco GSR Chokes on BGP
Oliver Boehmer (oboehmer)
oboehmer at cisco.com
Wed May 5 00:58:33 EDT 2010
>
> I have a link in my history, so I am sure that I have seen the issue
but
> do not recall the specifics.
>
>
http://www.cisco.com/en/US/products/hw/routers/ps359/products_tech_note0
9186
> a0080110d68.shtml#ts3
>
+1, you might want to enable "ip cef linecard ipc memory 10000" or to
allocate more IPC buffers on the linecard, which speeds up FIB download
to the LCs.. I am assuming you're carrying full routes.
are you running some form of BGP load-sharing on this box (i.e.
maximum-paths 2 or so in BGP)? Haven't dealt with Engine2 in ages, but I
recall there are some limitations to consider.
oli
> Dominic wrote:
> > Hi Everyone:
> >
> > I am curious: is anyone doing BGP, with Full routes, on a GSR?
> >
> > I am asking because, I have Transit circuit terminated on a 3-Port
GigE
> Line Card, on a GSR 12008 runing PRP-2. Remote peer is sending FULL
BGP
> routes. As soon as the BGP session comes up, however, the line card
> crashes/resets. Setting the maximum-prefix BGP parameter to a really
low
> level makes no difference. The LC is configured with the maximum
possible
> MEM available for that device, and this is the only BGP session on the
> entire box.
> >
> >
> > Here is the crashing error I get:
> >
> > May 4 16:40:07 gsr1-BUFF 4361795: May 4 20:40:06.405:
%BGP-5-ADJCHANGE:
> neighbor X.X.X.X Up
> > May 4 16:40:45 gsr1-BUFF 4361798: May 4 20:40:44.795:
%FIB-2-FIBDISABLE:
> Fatal error, slot 3: IPC Failure: timeout
> > May 4 16:40:45 gsr1-BUFF 4361799: May 4 20:40:44.795:
%RP-4-RSTSLOT:
> Resetting the card in the slot: 3,Event: CEF failure
> > --------------------------------------
> >
> > Here is the show diag from the Line Card:
> >
> > SLOT 3 (RP/LC 3 ): 3 Port Gigabit Ethernet
> > MAIN: type 68, 800-6376-03 rev C0
> > Deviation: D008017
> > HW config: 0x00 SW key: 00-00-00
> > PCA: 73-4775-06 rev B0 ver 2
> > Design Release 2.0 S/N CAB0527JGN1
> > MBUS: Embedded Agent
> > Test hist: 0x00 RMA#: 00-00-00 RMA hist: 0x00
> > DIAG: Test count: 0x05000006 Test results: 0x00000000
> > FRU: Linecard/Module: 3GE-GBIC-SC=
> > Processor Memory: MEM-GRP/LC-256=
> > Packet Memory: MEM-PKT-512-UPG=
> > L3 Engine: 2 - Backbone OC48 (2.5 Gbps)
> > MBUS Agent Software version 2.70 (RAM) (ROM version is 3.67)
> > ROM Monitor version 19.1
> > Fabric Downloader version used 11.5 (ROM version is 11.5)
> > Primary clock is CSC 1
> > Board is analyzed
> > Board State is Line Card Enabled (IOS RUN )
> > Insertion time: 24w4d (00:28:12 ago)
> > Processor Memory size: 268435456 bytes
> > TX Packet Memory size: 268435456 bytes, Packet Memory pagesize:
16384
> bytes
> > RX Packet Memory size: 268435456 bytes, Packet Memory pagesize:
16384
> bytes
> > 1 crash since restart
> > -------------------------
> >
> > And For the Processor diag:
> >
> > show diags 0
> >
> > SLOT 0 (RP/LC 0 ): Performance Route Processor
> > MAIN: type 96, 800-23469-02 rev A0
> > Deviation: D074404, D074394, D073524
> > HW config: 0x10 SW key: 00-00-00
> > PCA: 73-8812-05 rev A0 ver 5
> > Design Release 0.0 S/N SAD082805A5
> > MBUS: MBUS Agent (1) 73-8048-06 rev A0 dev 0
> > HW version 0.1 S/N CAT08180BD7
> > Test hist: 0x00 RMA#: 00-00-00 RMA hist: 0x00
> > DIAG: Test count: 0x00000000 Test results: 0x00000000
> > FRU: Linecard/Module: PRP-2=
> > Route Memory: MEM-PRP/LC-3584=
> > MBUS Agent Software version 2.70 (RAM) (ROM version is 3.68)
> > ROM Monitor version 1.23(0.36)
> > Primary clock is CSC 1
> > Board State is IOS Running ACTIVE (ACTV RP )
> > Insertion time: 00:00:07 (24w4d ago)
> > DRAM size: 3758096384 bytes
> > DRAM DIMM Slot 1: 2048M found, Slot 2: 2048M found
> >
> > -------------------
> >
> >
> > Here is the BGP Config:
> >
> > router bgp xxxx
> > no synchronization
> > bgp router-id x.x.x.x
> > no bgp fast-external-fallover
> > bgp log-neighbor-changes
> > bgp dampening
> > network x.x.x.x mask 255.255.254.0
> > network x.x.x.x mask 255.255.252.0
> > redistribute static
> > neighbor x.x.x.x remote-as x.x.x.x
> > neighbor x.x.x.x description Telco1
> > neighbor x.x.x.x password 7 xxxxx
> > neighbor x.x.x.x ebgp-multihop 5
> > neighbor x.x.x.x version 4
> > neighbor x.x.x.x route-map BGP-OUTGOING out
> > neighbor x.x.x.x maximum-prefix 400000 warning-only
> > no auto-summary
> >
> >
> > Any help would be appreciated.
> > Thanks.
> >
> >
> > Dominic
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>
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