H3C Technologies H3C Intelligent Management Center - Manual (Page 240)

Device advanced configuration
This function enables you to configure the GR for Session, Reconnect Timer (s), FT Reconnect Timer, and
Neighbor Liveness Timer (s) for a device that has been imported to the MPLS management.
NOTE:
The Advanced Configuration option appears in the operation menu only after device MPLS/LDP are
enabled.
To enter the device Advanced Configuration page:
1. Click Service > MPLS Management > Device Management from the tabular navigation system on
the top of the IMC main page.
2. Locate and click the Operation icon of a device entry. The operation menu appears and lists
all the operations that you can perform.
3. Select Advanced Configuration from the menu. The Advanced Configuration page appears.
4. Modify the related parameters:
• GR for Session—LDP Graceful Restart (GR) enables an LSR to keep MPLS forwarding entries
during an LDP restart, ensuring continuous MPLS forwarding. It is disabled by default.
• Recovery Timer (s)—LDP recover timers. During the LDP recovery time, LSRs use the
re-established LDP session to exchange label bindings, update label forwarding entries, and
clear the stale tags for the entries. When the Recovery timer expires, the GR helper deletes the
label forwarding entries still marked stale. The value range for the LDP Recovery Timer is 3 to
300 seconds.
• FT Reconnect Timer—When an LDP session is down, the GR helper marks the FEC-label
mappings learned from the session as stale and keeps these FEC-label bindings for a period
of time defined as the Fault Tolerant (FT) reconnect timer. If the LDP session is not set up before
the reconnect timer expires, the GR helper deletes the stale FEC-label mappings and the
corresponding MPLS forwarding entries. If the LDP session is successfully re-established, the
GR helper starts the recovery timer. The value range for the FT Reconnect Timer is 60 to 300
seconds.
• Neighbor Liveness Timer (s)—The maximum time that a GR helper maintains the neighbor
relationship with the GR restarter and helps the GR restarter restore its LFIB information when
a session is down.
5. Click OK.
NOTE:
You can configure the LDP Recovery Timer and FT Reconnect Timer for a device only when the GR for
Session feature is enabled for the device.
Device Traffic Configuration
This function enables you to enable or disable Traffic Statistics, and to set Traffic Statistics Interval(s).
To configure device traffic statistics:
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