RE: [nsp] Cisco 7500 Series Router and CEF/ISL/SMIP Issues

From: Hassan, Shehzad (
Date: Fri Nov 16 2001 - 00:16:58 EST

********************This is from one of the slots********************
Slot 1:
        Physical slot 1, ~physical slot 0xE, logical slot 1, CBus 0
        Microcode Status 0x4
        Master Enable, LED, WCS Loaded
        Board is analyzed
        Pending I/O Status: None
        EEPROM format version 1
        VIP2 R5K controller, HW rev 2.03, board revision A0
        Serial number: 18951423 Part number: 73-2167-06
        Test history: 0x00 RMA number: 00-00-00
        Flags: cisco 7000 board; 7500 compatible
        EEPROM contents (hex):
          0x20: 01 1E 02 03 01 21 2C FF 49 08 77 06 00 00 00 00
          0x30: 50 00 00 01 00 00 00 00 00 00 00 00 00 00 00 00
        Slot database information:
        Flags: 0x4 Insertion time: 0x2CF8 (3w4d ago)
        Controller Memory Size: 32 MBytes DRAM, 4096 KBytes SRAM
        PA Bay 0 Information:
                Fast-Ethernet PA, 1 ports, 100BaseTX-ISL
                EEPROM format version 1
                HW rev 1.04, Board revision B0
                Serial number: 16798778 Part number: 73-1688-05
        PA Bay 1 Information:
                Fast-Ethernet PA, 1 ports, 100BaseTX-ISL
                EEPROM format version 1
                HW rev 1.00, Board revision A0
                Serial number: 03551858 Part number: 73-1688-03
        --Boot log begin--
Cisco Internetwork Operating System Software
IOS (tm) VIP Software (SVIP-CDW-M), Version 12.0(18)S, EARLY DEPLOYMENT
TAC Support:
Copyright (c) 1986-2001 by cisco Systems, Inc.
Compiled Sun 15-Jul-01 17:05 by ninahung
Image text-base: 0x60010938, data-base: 0x60380000

Any other info ??


-----Original Message-----
From: Gerard White []
Sent: Thursday, November 15, 2001 12:53 PM
To: Hassan, Shehzad; Cisconsp (E-mail)
Cc: Hassan, Shehzad
Subject: Re: [nsp] Cisco 7500 Series Router and CEF/ISL/SMIP Issues

Sounds like your ISL troubles are related to BugID CSCdm12519
or BugID CSCdp55077.

I recall having an issue with older H/W revision FE PAs (1.0 or 1.1)
as well. You wouldn't happen to be using these here, would you?

As for your SMIP woes, the only way I got these interfaces to work
correctly in 12.0+ IOS code was to configure (gasp!) backing-store
transmit buffers on their respective interfaces. Kiss that RSP
performance good-bye...

Gerard White
Aliant Telecom

At 03:13 PM 11/15/2001 -0500, Hassan, Shehzad wrote:
>I would appreciate if someone can help me narrow down on this issue.
>I've seen packet drops on Fast-ethernet interfaces running ISL and CEF, the
>load is out of the question because some boxes exhibit these errors with
>minimal load.
>Here's the HW SW configurtion of one of the boxes
>router-7500 uptime is 1 week, 4 days, 12 hours, 37 minutes
>System returned to ROM by reload
>System restarted at 02:25:38 EST Sun Nov 4 2001
>System image file is "slot1:rsp-k3pv-mz.120-18.S.bin"
>Host configuration file is "tftp://"
>cisco RSP8 (R7000) processor with 262144K/8216K bytes of memory.
>R7000 CPU at 250Mhz, Implementation 39, Rev 2.1, 256KB L2, 2048KB L3 Cache
>Last reset from power-on
>G.703/E1 software, Version 1.0.
>G.703/JT2 software, Version 1.0.
>X.25 software, Version 3.0.0.
>Chassis Interface.
>1 FSIP controller (8 Serial).
>1 AIP controller (1 ATM).
>1 VIP2 controller (2 FastEthernet).
>2 VIP2 R5K controllers (1 ATM)(2 POS).
>2 FastEthernet/IEEE 802.3 interface(s)
>8 Serial network interface(s)
>2 ATM network interface(s)
>2 Packet over SONET network interface(s)
>2043K bytes of non-volatile configuration memory.
>20480K bytes of Flash PCMCIA card at slot 0 (Sector size 128K).
>32768K bytes of Flash PCMCIA card at slot 1 (Sector size 128K).
>16384K bytes of Flash internal SIMM (Sector size 256K).
>No slave installed in slot 3.
>Configuration register is 0x2102
>At this time I have disbaled CEF (dCEF) to get rid of the packet drop.
>Same problems with some other IOS,
>12.0(10)S5 Service Provider/VIP
>12.1(5) Service Provider/VIP
>Any ideas why this is hapening ? I've seen this on RSPx, with these 3
>flavors of IOSs.
>b) We've seen serious packet drops on some of the 7500s installed with SMIP
>Cards and RSP8, running 12.0(18)S code,
>Need to know if others are facing similar issues.

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