Asante Technologies 35516 - Manual (Page 78)

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show ip ospf neighbor [neighbor-id |
interface-name ] Display OSPF-neighbor information.
The debugging commands are useful to quickly diagnose problems. Use the following commands to display OSPF
information in top mode.
Command Purpose
debug ospf packet {hello | dd | ls-ack |
ls-request | ls-update | all}
[send | recv [detail]] Display one set of information for each packet. The
information includes the descriptions of packet database, link
state requests, and their updates.
debug ospf event Display information on OSPF-related events, such as
adjacencies, flooding information, designated router
selection, and SPF calculation.
debug ospf ism [events | status |
timers] Display flooding information, SPF calculation on internal
area-related events.
debug ospf lsa [flooding | refresh] Display flooding information, SPF calculation on OSPF-
generate related events.
debug ospf nsm [events | status |
timers] Display information on adjacencies.
debug ospf nssa Display OSPF NSSA information.
show debugging ospf Display OSPF-related debugging messages
5.8 Virtual Router Redundancy Protocol (VRRP)
Virtual Router Redundancy Protocol (VRRP) specifies a protocol that dynamically elects a gateway router from
among virtual routers running VRRP on a LAN. VRRP enables a group of routers to form a single virtual router. The
LAN hosts can then be configured with the virtual router as their default gateway. The virtual router, representing a
group of routers, is also known as a VRRP group, identified by a Virtual Router Identity (VRID). This allows hosts to
maintain access to other networks without requiring configuration of dynamic routing or router discovery protocols on
every end-host.
5.8.1 VRRP Configuration
All VRRP configuration commands are entered in the interface configuration mode.
Command Purpose
ip vrrp VRID ip A.B.C.D Enables VRRP on an interface and identifies the primary IP
address of the virtual router.
ip vrrp VRID description text Assigns a text description to the VRRP VRID group.
ip vrrp VRID preempt Configures the router to take over as master virtual router for
a VRRP VRID group if it has a higher priority than the current
master virtual router. This command is enabled by default.