Configuring bgp, Overview – H3C Technologies H3C S12500-X Series Switches User Manual
Page 248
234
Step Command
Remarks
5.
Perform manual soft-reset.
refresh bgp { ipv6-address | all |
external | group group-name |
internal } { export | import } ipv6
[ unicast ] [ vpn-instance
vpn-instance-name ]
N/A
335B
Protecting an EBGP peer when memory usage reaches level 2
threshold
Memory usage includes the following threshold levels: normal, level 1, level 2, and level 3. When the
level 2 threshold is reached, BGP periodically tears down an EBGP session to release memory resources
until the memory usage falls below the level 2 threshold. You can configure this feature to avoid tearing
down the EBGP session with a specific EBGP peer when the memory usage reaches the level 2 threshold.
For more information about memory usage thresholds, see Fundamentals Configuration Guide.
To configure BGP to protect an EBGP peer or peer group when the memory usage reaches level 2
threshold (IPv4):
Step Command
Remarks
1.
Enter system view.
system-view
N/A
2.
Enter BGP view or BGP-VPN
instance view.
•
Enter BGP view:
bgp as-number
•
Enter BGP-VPN instance view:
a.
bgp as-number
b.
ip vpn-instance
vpn-instance-name
N/A
3.
Configure BGP to protect an
EBGP peer or peer group
when the memory usage
reaches level 2 threshold.
peer { group-name | ip-address }
low-memory-exempt
By default, BGP periodically tears
down an EBGP session to release
memory resources when level 2
threshold is reached.
To configure BGP to protect an EBGP peer or peer group when the memory usage reaches level 2
threshold (IPv6):
Step Command
Remarks
1.
Enter system view.
system-view
N/A
2.
Enter BGP view or BGP-VPN
instance view.
•
Enter BGP view:
bgp as-number
•
Enter BGP-VPN instance view:
a.
bgp as-number
b.
ip vpn-instance
vpn-instance-name
N/A
3.
Configure BGP to protect an
EBGP peer or peer group
when the memory usage
reaches level 2 threshold.
peer { group-name |
ipv6-address }
low-memory-exempt
By default, BGP tears down an
EBGP session to release memory
resources periodically when level
2 threshold is reached.