User Manual

Table Of Contents
NETGEAR M4500 Series Switches CLI Command Reference Manual 679
6.3.1.10. show ip ospf neighbor
This command displays information about OSPF neighbors. If you do not specify a neighbor IP address, the
output displays summary information in a table. If you specify an interface or tunnel, only the information for
that interface or tunnel displays.The <ip-address> is the IP address of the neighbor, and when you specify this,
Neighbor Events
The number of times this neighbor relationship has changed state, or an error has
occurred.
Sent Packets
The number of OSPF packets transmitted on the interface.
Received Packets
The number of valid OSPF packets received on the interface.
Discards
The number of received OSPF packets discarded because of an error in the packet
or an error in processing the packet.
Bad Version
The number of received OSPF packets whose version field in the OSPF header
does not match the version of the OSPF process handling the packet.
Source Not On Local Subnet
The number of received packets discarded because the source IP address is not
within a subnet configured on a local interface.
Virtual Link Not Found
The number of received OSPF packets discarded where the ingress interface is in
a non-backbone area and the OSPF header identifies the packet as belonging to
the backbone, but OSPF does not have a virtual link to the packet’s sender.
Area Mismatch
The number of OSPF packets discarded because the area ID in the OSPF header
is not the area ID configured on the ingress interface.
Invalid Destination Address
The number of OSPF packets discarded because the packet’s destination IP
address is not the address of the ingress interface and is not the AllDrRouters or
AllSpfRouters multicast addresses.
Wrong Authentication Type
The number of packets discarded because the authentication type specified in
the OSPF header does not match the authentication type configured on the
ingress interface.
Authentication Failure
The number of OSPF packets dropped because the sender is not an existing
neighbor or the sender’s IP address does not match the previously recorded IP
address for that neighbor.
No Neighbor at Source
Address
The number of OSPF packets dropped because the sender is not an existing
neighbor or the sender’s address does not match the previously recorded IP
address for that neighbor.
Invalid OSPF Packet Type
The number of OSPF packets discarded because the packet type field in the OSPF
header is not a known type.
Hellos Ignored
The number of received Hello packets that were ignored by this router from the
new neighbors after the limit has been reached for the number of neighbors on
an interface or on the system as a whole.