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nyein chan tun

how to configure Supervisor engine II plus on catalyst 4503E for redundancy

Hi all experts,

         i want to know about supervisor engine redundancy for actvie switch & standby switch. In my work , there has two catalyst 4503E switchs, all features( include IOS version) are same, my IOS version is 12.1(20)EW, and hardware (supervisor engine II plus WS-X4013+ ) is also assembly on chasis.

        One switch is operated now and others is still as spare. Now i want to configure one switch is active switch and 2nd is as standby , when primary fail, standby work as primary. So i try to configure from config mode, type " show redundancy " , but "it's unrecognized command" msg apperared and no sign for redundancy see. In privilege mode, i type " show module " , i saw the following.

s4503#sh module
Chassis Type : WS-C4503

Power consumed by backplane : 10 Watts

Mod Ports Card Type                              Model              Serial No.
1     2  1000BaseX (GBIC) Supervisor(active)    WS-X4013+          JAE07470JAD
2    18  1000BaseX (GBIC)                       WS-X4418-GB        JAE07440BWU
3    48  10/100/1000BaseTX (RJ45)               WS-X4448-GB-RJ45   JAE08533D4L

M MAC addresses                    Hw  Fw           Sw               Status
1 000e.38d3.5740 to 000e.38d3.5741 2.0 12.1(19r)EW  12.1(20)EW, EARL Ok
2 000d.bcf6.58c8 to 000d.bcf6.58d9 1.1                               Ok
3 0012.dade.4450 to 0012.dade.447f 1.1                               Ok

s4503- #conf t
Enter configuration commands, one per line.  End with CNTL/Z.
SR4503-YGN-133-1(config)#sh redun ?
% Unrecognized command
S4503 (config)#sh redun

S 4503 #sh ver
Cisco Internetwork Operating System Software
IOS (tm) Catalyst 4000 L3 Switch Software (cat4000-I9K2S-M), Version 12.1(20)EW,
TAC Support:
Copyright (c) 1986-2003 by cisco Systems, Inc.
Compiled Wed 22-Oct-03 23:03 by kellmill
Image text-base: 0x00000000, data-base: 0x0106B818

ROM: 12.1(19r)EW
Dagobah Revision 86, Swamp Revision 3

S 4503-  uptime is 33 weeks, 6 days, 5 hours, 33 minutes
System returned to ROM by reload
System restarted at 12:18:49 UTC Thu Dec 3 2009
System image file is "bootflash:cat4000-i9k2s-mz.121-20.EW.bin"

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cisco WS-C4503 (XPC8245) processor (revision 4) with 262144K bytes of memory.
Processor board ID FOX07450450
Last reset from Reload
15 Ethernet/IEEE 802.3 interface(s)
1 FastEthernet/IEEE 802.3 interface(s)
68 Gigabit Ethernet/IEEE 802.3 interface(s)
511K bytes of non-volatile configuration memory.

Configuration register is 0x2102

so i don't know how to continue to be complete my mission. Moreover i worry for error occuring while configure two switchs for redundant.

After redundant, it can overlap all dynamic routing information from primary to secondary when primary is failure?

plz help me, step by step guide. thanks


I'm afraid the 4503-E does not support redundant supervisors.