Cisco WS-C6506 User Manual

8-11
Catalyst 6500 Series Switch Software Configuration Guide—Release 8.7
OL-8978-04
Chapter 8 Configuring IEEE 802.1Q Tunneling and Layer 2 Protocol Tunneling
Configuring Layer 2 Protocol Tunneling on the Switch
Note After reaching the shutdown threshold factor, the port or range of ports goes into the errdisable state and
is restored after the errdisable timeout interval. The shutdown threshold factor should exceed the drop
threshold factor. After reaching the drop threshold factor, the port or range of ports starts dropping
PDUs.
The default for the drop threshold and the shutdown threshold is zero (0). A zero indicates that no limit
is set.
Note With software release 8.4(1) and later releases, you can specify the drop and shutdown thresholds for
individual protocols on a per-port basis. If you configure thresholds only and do not specify a protocol,
the packets are rate limited cumulatively irrespective of protocols. If you specify a threshold for a
protocol on a port, the packets are rate limited on a cumulative basis and then per-protocol thresholds
are applied to the packets. The range for the per-port protocols drop threshold and shutdown threshold
is from 0–65535.
To specify the drop and shutdown thresholds on a port, perform this task in privileged mode:
This example shows how to specify a drop threshold of 500 and a shutdown threshold of 1000 on a port:
Console> (enable) set port l2protocol-tunnel 3/15 drop-threshold 500 shutdown-threshold
1000
Drop Threshold=500, Shutdown Threshold=1000 set on port 3/15.
Console> (enable)
This example shows how to specify a drop threshold of 100 and a shutdown threshold of 400 for the CDP
packets on a port:
Console> (enable) set port l2protocol-tunnel 3/1 drop-threshold 200 shutdown-threshold 400
cdp
Drop Threshold=200, Shutdown Threshold=400 set on port 3/1.
Console> (enable)
Console> (enable) show port l2protocol-tunnel 3/15
Port Tunnel Protocol(s) Drop Threshold Shutdown Threshold
------------------------ ------------------ -------------- ------------------
3/15 None 500 1000
Port CDP CDP STP STP VTP VTP
Drop Shutdown Drop Shutdown Drop Shutdown
Threshold Threshold Threshold Threshold Threshold Threshold
-------------------- --------- --------- --------- --------- --------- ---------
3/15 0 0 0 0 0 0
Console> (enable)
Task Command
Step 1
Specify the drop and shutdown thresholds on a
port.
set port l2protocol-tunnel mod/port
{drop-threshold drop-threshold}
{shutdown-threshold shutdown-threshold}
[cdp | eoam | stp | vtp]
Step 2
Verify the configuration. show port l2protocol-tunnel [mod[/port]]

Cisco WS-C6506 Specifications

General

Brand	Cisco
Model	WS-C6506
Category	Switch
Language	English