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Troubleshooting IP Routing Troubleshooting via the CLI
OmniSwitch Troubleshooting Guide September 2005 page 12-9
The show ip config command displays IP configuration on the switch:
-> show ip config
IP directed-broadcast = ON,
IP default TTL = 64
There are user-configurable parameters that can be changed as per requirement. The vlan mtu-ip
command sets the MTU (Maximum Transmission Unit) size for a VLAN.
-> vlan 110 mtu-ip 1500
The show ip interface command displays statistics of a particular IP interface.
-> show ip interface vlan 110
vlan 110
Link type = ETH_II,
Link status = UP,
SNMP interface index = 13600110
Interface index = 26
Enable IP forwarding = YES,
Administrative status = ENABLED,
Operational status = ACTIVATED,
Enable trap = NO,
Internet address = 10.40.110.2,
Broadcast address = 10.40.110.255,
Subnet mask = 255.255.255.0,
Hardware address = 00:d0:95:79:62:c1,
Vrrp MAC = 00:00:00:00:00:00,
Auth MAC = 00:00:00:00:00:00,
Maximum Transfer Unit (MTU) = 1500
Packets received = 1094,
Packets sent = 5740,
Bytes received = 108592,
Bytes sent = 331560,
Multicast packets received = 749,
Multicast packets sent = 5424,
Broadcast packets received = 0,
Broadcast packets sent = 4,
Input errors = 2
Output errors = 0
Collisions = 0
Dropped = 0
The show ip router database command displays a list of all routes (static and dynamic) that exist in the IP
router database. This database serves as a central repository where routes are first processed for redistribu-
tion and where duplicate routes are compared to determine the best route to use. If a route does not appear
in the IP router database list, then the switch does not know about it. In the case of dynamically learned
routes, this could indicate that the route was never received by the switch.
-> show ip router database
Destination Gateway Protocol Metric VLAN
-------------------+----------------+--------+------+-----
10.1.96.0/24 192.168.59.2 OSPF 1 59
10.1.96.0/24 192.168.60.2 OSPF 1 60
10.1.96.0/24 192.168.61.2 OSPF 1 61
10.1.96.0/24 192.168.62.2 OSPF 1 62
10.1.99.0/24 192.168.59.2 OSPF 1 59