Brocade FastIron Ethernet Switch Layer 3 Routing Configuration Guide - Manual (Page 132)

To reset a dynamically-configured MTU on a tunnel Interface back to the configured value, enter a
command such as the following.
device(config)#clear ip tunnel pmtud 3
Syntax: clear ip tunnel { pmtud tunnel-ID | stat tunnel-ID }
Use the pmtud option to reset a dynamically-configured MTU on a tunnel Interface back to the
configured value.
Use the stat option to clear tunnel statistics.
The tunnel-ID variable is a valid tunnel number or name.
Use the clear statistics tunnel command to clear GRE tunnel statistics for a specific tunnel ID
number. To clear GRE tunnel statistics for tunnel ID 3, enter a command such as the following.
device(config)# clear statistics tunnel 3
Syntax: clear statistics tunnel [ tunnel-ID ]
The tunnel-ID variable specifies the tunnel ID number.
Displaying IP configuration information and statistics
The following sections describe IP display options for Layer 3 switches and Layer 2 switches.
Changing the network mask display to prefix format
By default, the CLI displays network masks in classical IP address format (example: 255.255.255.0).
You can change the displays to prefix format (example: /18) on a Layer 3 switch or Layer 2 switch
using the following CLI method.
To enable CIDR format for displaying network masks, entering the following command at the global
CONFIG level of the CLI.
device(config)# ip show-subnet-length
Syntax: [no] ip show-subnet-length
Displaying IP information - Layer 3 Switches
You can display the following IP configuration information statistics on Layer 3 switches:
• Global IP parameter settings and IP access policies
• CPU utilization statistics
• IP interfaces
• ARP entries
• Static ARP entries
• IP forwarding cache
• IP route table
• IP traffic statistics
Displaying IP configuration information and statistics
132 FastIron Ethernet Switch Layer 3 Routing Configuration Guide
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