Extreme Networks ExtremeWare 7.0.0, Command Reference Manual, Page: 1501 / 1598

config debug-trace ip-forwarding
ExtremeWare Software 7.0.0 Command Reference Guide 1501
config debug-trace ip-forwarding
config debug-trace ip-forwarding <debug level>
Description
This command records IP forwarding debug information to the syslog.
Syntax Description
Default
The default level is 0.
Usage Guidelines
The
debug level
range is 0 to 5. Higher levels record more verbose messages. Higher levels also record
the messages recorded at lower levels.
Use level 1 to detect symptoms. Use level 2 to trace the flow of packet processing. All levels show layer
3 information.
Example
The following command sets the reporting level for IP forwarding errors to 2:
config debug-trace ip-forwarding 2
Following is the log output at this level:
<WARN:IPRT> ip_slowpath.c 400: DROP: Bad IP header chksum.
source/dest=211.41.176.100/210.10.20.100
<WARN:IPRT> ip_input.c 220:DROP: Bad chksum rtif/port=2/1:1
source/dest=211.41.176.100/210.10.20.100
<WARN:IPRT> ip_slowpath.c 432:DROP: Dest is a blackhole.
source/dest=211.41.176.100/200.10.10.100
<WARN:IPRT> ip_input.c 532: DROP: Dest is a blackhole. rtif/port=2/1:1 source/dest =
211.41.176.100 / 200.10.10.100
<WARN:IPRT> ip_slowpath.c 450: DROP: Dest is a VIP and slb-type has not been
configured on the VLANs. Source/dest= 200.1.1.200 /211.41.175.1
<WARN:IPRT> ip_slowpath.c 454: DROP: Cannot find route (NETUNREACH).
source/destination=211.41.176.100/211.41.174.100
debug level Specifies a debug level:
0 — None.
1 — Records warning messages, such as “bad checksum” or “short header length.”
2 — Records informational messages, with information such as source IP address,
destination IP address, ingress port, and router interface.
3 — Displays a dump of each packet.
4 — No additional information recorded.
5 — No additional information recorded.