HP Comware 5 Debug Manual Vol 3

<Sysname> debugging tunnel event
*Jul 17 09:16:07:930 2008 Sysname TUNNEL/7/debug:
Tunnel1 can't come up because:
// The link state of Tunnel1 cannot be up, and the reason might be the following:
*Jul 17 09:16:07:930 2008 Sysname TUNNEL/7/debug:
Tunnel source is null.
// The link state of Tunnel1 was down because the source IP address was not configured.
*Jul 17 09:16:07:935 2008 Sysname TUNNEL/7/debug:
Tunnel destination is null.
// The link state of Tunnel1 was down because the destination address was not configured.
# Enable tunnel packet debugging on the local device. The output in this example was created when the
following conditions exist:
Tunnel interfaces have been created on two devices.
For some switches, packet decapsulation is implemented through chips. After being received by the
local device, the tunnel packets are decapsulated, and then sent to the tunnel interface for
processing.
<Sysname> debugging tunnel packet
*Jul 17 09:16:07:928 2008 Sysname TUNNEL/7/debug:Tunnel receive packet(bDecapsulate
d = 1), tunnel index = 0x32f0000.
// The tunnel interface received a decapsulated packet delivered by the drive.
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