cisco help
 

Can someone let me know how I can enable jumbo frames on a 4006, or if indeed I can...

xxxxx#sh mod
Chassis Type : WS-C4006

Power consumed by backplane : 0 Watts

Mod Ports Card Type Model Serial No.
---+-----+--------------------------------------+------------------+-----------
1 2 1000BaseX (GBIC) Supervisor(active) WS-X4515 JAE0830R06M
4 48 10/100/1000BaseTX (RJ45) WS-X4548-GB-RJ45 JAE1003TWPY
5 48 10/100/1000BaseTX (RJ45) WS-X4448-GB-RJ45 JAB07280622
6 48 10/100/1000BaseTX (RJ45) WS-X4448-GB-RJ45 JAB0728069T

M MAC addresses Hw Fw Sw Status
--+--------------------------------+---+------------+----------------+---------
1 000d.29e5.bc00 to 000d.29e5.bc01 3.1 12.1(20r)EW1 12.2(18)EW, EARL Ok
4 0016.9dd1.6c00 to 0016.9dd1.6c2f 2.2 Ok
5 000d.29db.5bb0 to 000d.29db.5bdf 1.1 Ok
6 000d.29db.5e50 to 000d.29db.5e7f 1.1 Ok

xxxxx#sh ver
Cisco Internetwork Operating System Software
IOS (tm) Catalyst 4000 L3 Switch Software (cat4000-I9S-M), Version 12.2(18)EW, E
ARLY DEPLOYMENT RELEASE SOFTWARE (fc1)
TAC Support: Cisco – Shortcut to Technical Support
Copyright (c) 1986-2004 by cisco Systems, Inc.
Compiled Fri 30-Jan-04 02:04 by hqluong
Image text-base: 0x00000000, data-base: 0x010B0624

ROM: 12.1(20r)EW1
Dagobah Revision 90, Swamp Revision 28

xxxxx uptime is 14 weeks, 4 days, 1 hour, 40 minutes
System returned to ROM by reload
System image file is "bootflash:"

cisco WS-C4006 (MPC8245) processor (revision 7) with 524288K bytes of memory.
Processor board ID FOX072100AP
Last reset from Reload
4 Virtual Ethernet/IEEE 802.3 interface(s)
146 Gigabit Ethernet/IEEE 802.3 interface(s)
403K bytes of non-volatile configuration memory.

Configuration register is 0x2101

xxxxx#

Cheers

David

Don't you just set the MTU to be a bit jumbo in size?

commands I have found dont seem to work, and I was thinking of around 9000

David

#conf t
#mtu 9100

Something like that?

conf t
int xxx (whatever the interface is)
ip mtu 9000
exit
write mem

that's how i do it on me 877 but it err may be different on that device:)

xxxxx#conf t
Enter configuration commands, one per line. End with CNTL/Z.
xxxxx(config)#mtu 9100
^
% Invalid input detected at '^' marker.

xxxxx(config)#int gi3/40
xxxxx(config-if)#mt
xxxxx(config-if)#mtu 9100
^
% Invalid input detected at '^' marker.

xxxxx(config-if)#ip mtu 9100
^
% Invalid input detected at '^' marker.

xxxxx(config-if)#ip ?
Interface IP configuration subcommands:
access-group Specify access control for packets
arp Configure ARP features
dhcp DHCP
igmp IGMP interface commands
verify verify

xxxxx(config-if)#ip

Hi, I don't think you can with those cards.

Whilst the supervisor and software look ok, there is a list of all modules that support Jumbos.
See here (about two thirds down):
Troubleshooting Baby Giant/Jumbo Frames in Catalyst 4000/4500 with Supervisor III/IV* [Cisco Catalyst 4000 Series Switches] - Cisco Systems

Cheers, Ill have a read tomorrow :)