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New Member

Need command to increase output queue on GigaEthernet Port

I have a site with GigaEthernet ports on a Cat 4006. I need to increase the output queue buffer from its default of 40. How can I do this?

sh int g4/4

GigabitEthernet4/4 is up, line protocol is up (connected)

Queueing strategy: fifo

Output queue: 0/40 (size/max)

I am running IOS (tm) Catalyst 4000 L3 Switch Software (cat4000-I5K91S-M), Version 12.2(20)EW, EARLY DEPLOYMENT RELEASE SOFTWARE (fc1)

interface GigabitEthernet4/4

description PRDRDAAPP01

switchport trunk encapsulation dot1q

switchport trunk allowed vlan 22,28

switchport mode trunk

logging event link-status

speed 1000

no snmp trap link-status

spanning-tree portfast


Re: Need command to increase output queue on GigaEthernet Port


Use the command 'hold-queue 100 out' under the interface to change it to 100.


PS. Pls do remember to rate posts

New Member

Re: Need command to increase output queue on GigaEthernet Port


It looks like hold-queue is not a valid command under the interf g4/4.

(config)#int g4/4


Interface configuration commands:

access-group Access group configuration

arp Set arp type (arpa, probe, snap) or timeout

auto Configure Automation

backup Modify backup parameters

bandwidth Set bandwidth informational parameter

bgp-policy Apply policy propogated by bgp community string

carrier-delay Specify delay for interface transitions

cdp CDP interface subcommands

channel-group Etherchannel/port bundling configuration

channel-protocol Select the channel protocol (LACP, PAgP)

clns CLNS interface subcommands

crypto Encryption/Decryption commands

dampening Enable event dampening

default Set a command to its defaults

delay Specify interface throughput delay

description Interface specific description

dot1x Interface Config Commands for 802.1x

duplex Configure duplex operation.

exit Exit from interface configuration mode

flow-sampler Attach flow sampler to the interface

flowcontrol Configure flow operation.

help Description of the interactive help system

ip Interface Internet Protocol config commands

isis IS-IS commands

iso-igrp ISO-IGRP interface subcommands

keepalive Enable keepalive

l2protocol-tunnel Tunnel Layer2 protocols

lacp LACP interface subcommands

load-interval Specify interval for load calculation for an interface

logging Configure logging for interface

loopback Configure internal loopback on an interface

mac MAC interface commands

macro Command macro

max-reserved-bandwidth Maximum Reservable Bandwidth on an Interface

mtu Set the interface Maximum Transmission Unit (MTU)

no Negate a command or set its defaults

pagp PAgP interface subcommands

qos QoS configuration

rmon Configure Remote Monitoring on an interface

service-policy Configure QoS Service Policy

shutdown Shutdown the selected interface

snmp Modify SNMP interface parameters

spanning-tree Spanning Tree Subsystem

speed Configure speed operation.

storm-control storm configuration

switchport Set switching mode characteristics

timeout Define timeout values for this interface

transmit-interface Assign a transmit interface to a receive-only interface

tx-queue Configure interface transmit queue

udld Configure UDLD enabled or disabled and ignore global UDLD setting


Re: Need command to increase output queue on GigaEthernet Port


Have you tried using the tx-queue command ?


New Member

Re: Need command to increase output queue on GigaEthernet Port

I did some research on tx-queue and it doesn't look like this affects the output queue. However, I will see if my remote site can try it.

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