3Com MSR 50 Series Configuration Manual page 1378

1378 C 77: MPLS TE C
HAPTER ONFIGURATION
To do...
Configure the CSPF failed link
timer
Configuring flooding thresholds
After bandwidths of links regulated by MPLS TE change, CSPF may need to
recalculate paths. This tends to be resource consuming as recalculation involves
IGP flooding. To reduce recalculations and flood only significant changes, you may
configure the following two IGP flooding thresholds in percentages:
Up threshold. When the percentage of available-bandwidth increase to the
■
maximum reservable bandwidth exceeds the threshold, the change is flooded.
Down threshold. When the percentage of available-bandwidth decrease to the
■
maximum reservable bandwidth exceeds the threshold, the change is flooded.
Follow these steps to configure flooding thresholds:
To do...
Enter system view
Enter MPLS TE tunnel
interface view
Configure the up/down
thresholds for IGP to flood
bandwidth changes
Submit current tunnel
configuration
Configuring the link metric used for routing a tunnel
For an MPLS TE link, you may assign it a TE metric. This TE metric or the IGP metric
of the link is used for routing MPLS TE tunnels, depending on which metric type is
specified.
Follow these steps to configure the link metric used for routing a tunnel:
To do...
Enter system view
Enter MPLS view
Configure the link metric type
used for routing TE tunnels
without metric type
Exit to system view
Enter MPLS TE tunnel
interface view
Configure the link metric type
used for routing the tunnel
Submit current tunnel
configuration
Exit to system view
Use command to...
mpls te cspf timer
failed-link timer-interval
Use command to...
system-view
interface interface-type
interface-number
mpls te bandwidth change
thresholds { down | up }
percent
mpls te commit
Use command to...
system-view
mpls
mpls te path metric-type
{ igp | te }
quit
interface tunnel
tunnel-number
mpls te path metric-type
{ igp | te }
mpls te commit
quit
Remarks
Optional
The default is 10 seconds.
Remarks
--
--
Optional
Both up and down flooding
thresholds are 10 by default.
Required
Remarks
--
--
Optional
TE metrics of links are used by
default.
--
--
Optional
TE metric is used by default.
Optional
--