Command Reference Guide

3Com Router 3000 Ethernet Family
Command Reference Guide
Chapter 2 GRE Configuration Commands
3Com Corporation
2-3
Tunnel2/0/4 is up, line protocol is up
Description : HUAWEI, Quidway Series, Tunnel2 Interface
The Maximum Transmit Unit is 1500
Internet Protocol processing is disable
Encapsulation is TUNNEL, loopback not set
Tunnel source 1.1.254.88 (Ethernet2/0/0), destination 1.1.254.11
Tunnel protocol/transport GRE/IP, key disabled
Checksumming of packets disabled
5 minutes input rate 0 bytes/sec, 0 packets/sec
5 minutes output rate 0 bytes/sec, 0 packets/sec
0 packets input, 0 bytes
0 input error
0 packets output, 0 bytes
0 output error
Table 2-1 Description on the fields of the display interface tunnel 2 command
Field Description
Tunnel2 is up
The physical layer of the tunnel interface
is up.
line protocol is up
The link layer of the tunnel interface is
up.
Description
The description information of the tunnel
interface, being HUAWEI in this
example.
Quidway Series The router is Quidway series
Tunnel2 Interface Tunnel interface number
Maximum Transmit Unit
The size of MTU in the tunnel, being
1500 bytes in this example
Encapsulation
The tunnel formed by encapsulated
GRE protocol
Loopback
Enable/Disable loopback test. Because
the tunnel interface does not support
loopback test, disabled loopback is the
case in this example.
Tunnel source
Source address of the tunnel, being
1.1.254.88 here.
Ethernet2/0/0
The interface of tunnel source address is
Ethernet 2/0/0.
destination
Destination address of the tunnel, being
1.1.254.11 here.
Tunnel protocol/transport
Encapsulation protocol and transport
protocol of the tunnel, being GRE and IP
here.