User manual

xStack DES-3800 Series Layer 3 Stackable Fast Ethernet Managed Switch
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Sequence
Displays a sequence number corresponding to number of times the current link has
been advertised as changed.
Browse OSPF Neighbor Table
This table can be found in the OSPF Monitoring folder by clicking on the Browse OSPF Neighbor
Table link. Routers that are connected to the same area or segment become neighbors in that area.
Neighbors are elected via the Hello protocol. IP multicast is used to send out Hello packets to other
routers on the segment. Routers become neighbors when they see themselves listed in a Hello packet
sent by another router on the same segment. In this way, two-way communication is guaranteed to be
possible between any two-neighbor routers. This table displays OSPF neighbors of the Switch.
Figure 12- 31. OSPF Neighbor Table
To search for OSPF neighbors, enter an IP address and click Find. Valid OSPF neighbors will appear
in the OSPF Neighbor Table below.
OSPF Virtual Neighbor
This table can be found in the OSPF Monitoring folder by clicking on the Browse OSPF Virtual
Neighbor Table link in the Monitoring folder. This table displays a list of Virtual OSPF Neighbors
of the Switch. The user may choose specifically search a virtual neighbor by using one of the two
search options at the top of the screen, which are:
Parameter Description
Transit Area ID
Allows the entry of an OSPF Area ID − previously defined on the Switch − that allows
a remote area to communicate with the backbone (area 0). A Transit Area cannot be
a Stub Area or a Backbone Area.
Virtual Neighbor
Router ID
The OSPF router ID for the remote router. This IP address uniquely identifies the
remote area’s Area Border Router.