HP Comware 5 Debug Manual Vol 3

--- 5.5.5.2 ping statistics ---
1 packet(s) transmitted
1 packet(s) received
0.00% packet loss
round-trip min/avg/max = 78/78/78 ms
•
On multi-core devices:
# Enable IPv4 tunnel error debugging on the local device. The output in this example was created when
the following conditions exist:
•
An IPv4 tunnel is established between two devices.
•
Parameters are configured to bring up only the peer tunnel interface.
<Sysname> debugging ipv4-tunnel error
*Mar 6 11:56:46:312 2008 Sysname DP4IN4/7/debug:
error: Failed to find tunnel interface.
// The local end failed to find the tunnel interface for decapsulation of the packet sent from the peer end.
# Enable IPv4 tunnel packet debugging on the local device. Output similar to the following example is
generated when you execute the ping command under the following conditions:
•
An IPv4 tunnel is established between two devices.
•
Parameters are configured to bring up the tunnel interfaces.
<Sysname> debugging ipv4-tunnel packet
<Sysname> ping –c 1 22.1.1.2
PING 22.1.1.2: 56 data bytes, press CTRL_C to break
*Mar 6 11:03:21:578 2008 Sysname DP4IN4/7/debug:
Tunnel0 packet: Before encapsulation,
packet header: 1.1.1.1->22.1.1.2(length = 84).
// Before encapsulation at interface Tunnel 0, the source and destination IP addresses of the packet
header are 1.1.1.1 and 22.1.1.2, and the packet length is 84.
*Mar 6 11:03:21:578 2008 Sysname DP4IN4/7/debug:
Tunnel0 packet: After encapsulation,
outgoing packet header 2.1.1.1->2.1.1.2(length = 104).
// After encapsulation at interface Tunnel 0, the source and destination IP addresses of the packet
header are 2.1.1.1 and 2.1.1. 2, and the packet length is 104.
*Mar 6 11:03:21:593 2008 Sysname DP4IN4/7/debug:
packet: Before decapsulation,
packet header 2.1.1.2->2.1.1.1(length = 104).
// Before decapsulation at interface Tunnel 0, the source and destination IP addresses of the packet
header are 2.1.1. 2 and 2.1.1.1, and the packet length is 104 .
*Mar 6 11:03:21:593 2008 Sysname DP4IN4/7/debug:
Tunnel0 packet: After decapsulation,
outgoing packet header 22.1.1.2->1.1.1.1(length = 84).
// After decapsulation at interface Tunnel 0, the source and destination IP addresses of the packet
header are 22.1.1. 2 and 1.1.1.1, and the packet length is 84.
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