Lucent Technologies CBX 3500 Configuration Manual page 387

Beta Draft Confidential
ATM Services Configuration Guide for CBX 3500, CBX 500, GX 550, and B-STDX 9000
Configuring ATM Over MPLS Gateway Solution on CBX 3500
Table 9-16. Add OSPF IP Interface Fields (Continued)
Field
Router Priority Enter a value between 0 (zero) and 255 (the default value is 1).
(0-255) This number identifies the priority of the router associated with
this logical port and is used to elect the Designated Routers and
Backup Designated Routers. The router with the highest priority
is considered the Designated Router. A value of 0 (zero) indicates
the router is not eligible to be the designated or Backup
Designated Router. If all routers have the same priority, the router
ID is used to determine the Designated Router.
TOS 0 Metric Enter a value between 0 and 65535 (the default value is 1). This
(1-65535) value specifies the type of service cost. The lowest TOS 0 has the
highest priority for routing.
Authentication Specify the type of authentication that OSPF uses as a security
Type measure to ensure that this logical port and router exchange
information with correct neighbors. Options include:
None – (default) Specifies that no authentication is performed.
Simple Password – Specifies a simple password authentication
method that includes a password in all OSPF messages on an
interface-by-interface basis. When a router receives a message on
an interface that uses simple password authentication, the router
checks the incoming OSPF message to see if the password is
included in the message. If the password is correct, the message
is processed normally. If the password is not part of the incoming
message, the message is ignored and dropped.
MD5 – Use MD5 authentication to verify a key that is appended
to the end of an IP OSPF protocol packet. For more information
on how MD5 authentication works, see RFC 1321 (The MD5
Message-Digest Algorithm). In addition to RFC 1321, RFC 2178
(OSPF Version 2) provides information on how MD5
authentication is used with IP OSPF.
Authentication An authentication password if SIMPLE is specified as the
Key authentication type. This value is not required if NONE is
selected as the authentication type.
OSPF TE Metric Enter a value between 1 (default) and 65535. The OSPF traffic
(1-max Metric) engineering metric specifies the OSPF link metric for traffic
engineering purposes. This metric may be different than the
standard OSPF link metric. Typically, this metric is assigned by a
network administrator, and used primarily by the
constraint-based SPF calculation for MPLS tunnel setup.
Configuring a Layer 2 Tunnel Over MPLS Core Network
Action/Description
1/19/059-41