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H3C Technologies H3C MSR 50 User Manual

Page 28

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[RouterB-Serial2/0] quit

[RouterB] interface serial 2/1

[RouterB-Serial2/1] undo ip fast-forwarding

[RouterB-Serial2/1] quit

[RouterB] interface serial 2/2

[RouterB-Serial2/2] undo ip fast-forwarding

[RouterB-Serial2/2] quit

4.

Configure the standby interfaces and load balancing on Router A:
# Specify interfaces Serial 2/1 and Serial 2/2 on Router A to back up Serial 2/0, and assign
them the priorities 30 and 20, respectively.

[RouterA] interface serial 2/0

[RouterA-Serial2/0] standby interface serial 2/1 30

[RouterA-Serial2/0] standby interface serial 2/2 20

# Configure the available bandwidth used for setting the thresholds to 10000 kbps.

[RouterA-Serial2/0] standby bandwidth 10000

# Configure the enable-threshold of load balancing to 80 and the disable-threshold to 20.

[RouterA-Serial2/0] standby threshold 80 20

5.

Verify the configuration on Router A:
# Display the traffic statistics for the active interface taking part in load balancing.

[RouterA-Serial2/0] display standby flow

Interfacename : Serial2/0

Flow-interval(s) : 30

LastInOctets : 139

LastOutOctets : 22033

InFlow(Octets) : 0

OutFlow(Octets) : 0

BandWidth(b/s) : 10000

UsedBandWidth(b/s) : 0

# Display the state of the active and standby interfaces.

[RouterA-Serial2/0] display standby state

Interface Interfacestate Standbystate Standbyflag Pri Loadstate

serial2/0 UP MUP MUD TO-HYPNOTIZE

serial2/1 STANDBY STANDBY BU 30

serial2/2 STANDBY STANDBY BU 20

Backup-flag meaning:

M---MAIN B---BACKUP V---MOVED U---USED

D---LOAD P---PULLED

# When the data traffic on the active interface Serial 2/0 exceeds 8000 kbps (that is, 10000 kbps

× 80%), standby interface Serial 2/1 with a higher priority is enabled first. Then you can view the
state of the active and standby interfaces.

[RouterA-Serial2/0] display standby state

Interface Interfacestate Standbystate Standbyflag Pri Loadstate

serial2/0 UP MUP MUD

serial2/1 UP UP BU 30

serial2/2 STANDBY STANDBY BU 20

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