Cisco CATALYST 4000 32 PORT 10/100 L3 MODULE WITH 2 PORT GBIC Specification Guide
On the WS-X4232-L3 module (line card), these features cannot be applied on the L2
10/100 ports. They can be applied on two L3 routed ports (Gigabit Ethernet 1 and
Gigabit Ethernet 2), as well as the internal ports (Gigabit Ethernet 3 and Gigabit
Ethernet 4), which are connected to the backplane. L2 ports on the 4232-L3 module and
the other L2 ports on the Catalyst 4000 switch support input classification and output
scheduling. For more information about these features, refer to the Catalyst 4000 QoS
Configuration Guide.
10/100 ports. They can be applied on two L3 routed ports (Gigabit Ethernet 1 and
Gigabit Ethernet 2), as well as the internal ports (Gigabit Ethernet 3 and Gigabit
Ethernet 4), which are connected to the backplane. L2 ports on the 4232-L3 module and
the other L2 ports on the Catalyst 4000 switch support input classification and output
scheduling. For more information about these features, refer to the Catalyst 4000 QoS
Configuration Guide.
Internetwork Packet Exchange (IPX) routing cannot be enabled when the per-port traffic
conditioning feature is enabled on any port, nor can the per-port traffic conditioning
feature be enabled when IPX routing is enabled.
conditioning feature is enabled on any port, nor can the per-port traffic conditioning
feature be enabled when IPX routing is enabled.
Q. Does the per-port output rate-limiting apply to all (IP and non-IP) traffic
destined for output on the applied port?
destined for output on the applied port?
A. Yes, it applies to all traffic except traffic originating from the CPU or traffic that is
process switched by the CPU. Access Control List (ACL)-based classification or class-
based classification is also not supported.
process switched by the CPU. Access Control List (ACL)-based classification or class-
based classification is also not supported.
Q. Does the per-port input rate-limiting apply to all (IP and non-IP) traffic received
on the applied port?
on the applied port?
A. Yes, it applies to all traffic except high-priority traffic, such as routing updates or
Bridge Protocol Data Units (BPDUs), destined to the CPU. Access Control List (ACL)-
based classification or class-based classification is also not supported.
Bridge Protocol Data Units (BPDUs), destined to the CPU. Access Control List (ACL)-
based classification or class-based classification is also not supported.
Q. Can I disable Internetwork Packet Exchange (IPX) routing and transition to the
per-port traffic shaping feature without power cycling the switch?
per-port traffic shaping feature without power cycling the switch?
A. Yes, but transitioning between IPX routing and per-port traffic conditioning involves
dynamic downloading of new binaries to the network processor. It is best to perform this
dynamic downloading under light traffic conditions.
dynamic downloading of new binaries to the network processor. It is best to perform this
dynamic downloading under light traffic conditions.
Q. Can I enable per-port traffic shaping for the first time without user
interruption?
interruption?
A. No, when you enable per-port traffic shaping for the first time, it involves the
dynamic downloading of new binaries to the network processor. It causes the link to
bounce momentarily and stabilize once the downloading is complete. This download
affects all ports, not just the port in which the per-port traffic shaping feature is enabled.
It is recommended that you perform this procedure during a scheduled downtime. The
following sample output shows the actual switch console output when traffic shaping is
enabled:
dynamic downloading of new binaries to the network processor. It causes the link to
bounce momentarily and stabilize once the downloading is complete. This download
affects all ports, not just the port in which the per-port traffic shaping feature is enabled.
It is recommended that you perform this procedure during a scheduled downtime. The
following sample output shows the actual switch console output when traffic shaping is
enabled:
2948GL3-A(config)#interface fastethernet 5
2948GL3-A(config-if)#traffic-shape rate 1000000 512000
Changing all linecard binary images to support Port QOS.
2w4d: Loading Shared CAM ISL ucode image on [FastEthernet2]No active
members in this bvi, shutting down
2w4d: %STANDBY-6-STATECHANGE: Standby: 1: BVI1 state Standby -> Init
2w4d: Downloading micro code on [FastEthernet4].
2w4d: %LINK-3-UPDOWN: Interface BVI1, changed state to down
2w4d: %LINEPROTO-5-UPDOWN: Line protocol on Interface BVI1, changed
state to down
2948GL3-A(config-if)#traffic-shape rate 1000000 512000
Changing all linecard binary images to support Port QOS.
2w4d: Loading Shared CAM ISL ucode image on [FastEthernet2]No active
members in this bvi, shutting down
2w4d: %STANDBY-6-STATECHANGE: Standby: 1: BVI1 state Standby -> Init
2w4d: Downloading micro code on [FastEthernet4].
2w4d: %LINK-3-UPDOWN: Interface BVI1, changed state to down
2w4d: %LINEPROTO-5-UPDOWN: Line protocol on Interface BVI1, changed
state to down
Page 3 of 7
Cisco - Catalyst G-L3 Series Switches and WS-X4232-L3 Layer 3 Modules QoS FAQ
7/20/2004
http://www.cisco.com/warp/customer/473/125.html