Concept Guide
• the community format follows RFC 1998
• delayed conguration (the software at system boot reads the entire conguration le prior to sending messages to start BGP peer
sessions)
The following are not yet supported:
• auto-summarization (the default is no auto-summary)
• synchronization (the default is no synchronization)
Enabling BGP
To enable the BGP process and begin exchanging information, assign an AS number and use commands in ROUTER BGP mode to
congure a BGP neighbor.
By default, BGP is disabled.
By default, Dell EMC Networking OS compares the MED attribute on dierent paths from within the same AS (the bgp always-
compare-med command is not enabled).
NOTE: In Dell EMC Networking OS, all newly congured neighbors and peer groups are disabled. To enable a neighbor or peer
group, enter the neighbor {ip-address | peer-group-name} no shutdown command.
The following table displays the default values for BGP on Dell EMC Networking OS.
Table 9. BGP Default Values
Item Default
BGP Neighbor Adjacency changes All BGP neighbor changes are logged.
Fast External Fallover feature Disabled
Graceful Restart feature Disabled
Local preference 100
MED 0
Route Flap Damping Parameters
half-life = 15 minutes
reuse = 750
suppress = 2000
max-suppress-time = 60 minutes
Distance
external distance = 20
internal distance = 200
local distance = 200
Timers
keepalive = 60 seconds
holdtime = 180 seconds
Add-path Disabled
192 Border Gateway Protocol version 4 (BGPv4)