Neighbor Update-Source; Neighbor Weight - Dell Force10 Z9000 Reference Manual

Usage
Timer values configured with the neighbor timers command override the timer values
Information
configured with the timers bgp command.
When two neighbors, configured with different keepalive and holdtime values,
negotiate for new values, the resulting values are as follows:

neighbor update-source

Enable the E-Series software to use Loopback interfaces for TCP connections for BGP sessions.
C-Series, E-Series
Syntax neighbor {ipv6-address | peer-group-name} update-source
loopback interface
To use the closest interface, use the no neighbor {ipv6-address | peer-
group-name} update-source loopback interface command.
Parameters
ipv6-address
peer-group-name
loopback
interface
Defaults Not configured.
Command Modes ROUTER BGP
Command History
Version 8.2.1.0
Version 7.4.1.0
Usage Loopback interfaces are up constantly and the BGP session may need one interface constantly
Information up to stabilize the session. The neighbor update-source command is not necessary for
directly connected internal BGP sessions.

neighbor weight

Assign a weight to the neighbor connection, which is used to determine the best path.
C-Series, E-Series
Syntax neighbor {ipv6-address | peer-group-name} weight weight
494
• the lower of the holdtime values is the new holdtime value, and
• whichever is the lower value; one-third of the new holdtime value, or the
configured keepalive value is the new keepalive value.
Enter the IPv6 address in the x:x:x:x::x format.
NOTE: The :: notation specifies successive hexadecimal fields of
zeros.
Enter the name of the peer group to disable all routers within the peer
group.
Enter the keyword loopback followed by a number of the loopback
interface. The range is 0 to 16383.
Introduced on the E-Series ExaScale.
Introduced