H3C Technologies H3C S10500 Series Switches - Manual (Page 116)

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Configuring RSVP reservation style
Each LSP set up using RSVP-TE is assigned a resource reservation style. During an RSVP session, the
receiver decides which reservation style can be used for this session and thus which LSPs can be used.
Two reservation styles are available:
• Fixed-filter style (FF) where resources are reserved for individual senders and cannot be shared
among senders on the same session.
• Shared-explicit style (SE) where resources are reserved for senders on the same session and shared
among them.
Follow these steps to configure RSVP reservation style:
To do… Use the command... Remarks
Enter system view system-view ––
Enter MPLS TE tunnel interface view interface tunnel tunnel-number ––
Configure the resources
reservation style for the tunnel
mpls te resv-style { ff | se }
Optional
The default resource reservation
style is SE.
Submit current tunnel configuration mpls te commit Required
NOTE:
In current MPLS TE applications, the SE style is mainly used for make-before-break, while the FF style is
rarely used.
Configuring RSVP state timers
Follow these steps to configure RSVP state timers:
To do… Use the command... Remarks
Enter system view system-view ––
Enter MPLS view mpls ––
Configure the path/reservation
state refresh interval of the node mpls rsvp-te timer refresh
timevalue
Optional
The default path/reservation state
refresh interval is 30 seconds.
Configure the keep multiplier for
PSB and RSB mpls rsvp-te keep-multiplier
number Optional
The default is 3.
Configure the blockade timeout
multiplier mpls rsvp-te blockade-multiplier
number
Optional
The default blockade timeout
multiplier is 4.
Configuring the RSVP refresh mechanism
To enhance reliability of RSVP message transmission, the Message_ID extension mechanism is used to
acknowledge RSVP messages. The Message_ID extension mechanism is also referred to as “the
reliability mechanism” throughout this document.
After you enable RSVP message acknowledgement on an interface, you can enable retransmission.
To use summary refresh (Srefresh), you must use the Message_ID extension. Only states advertised using
MESSAGE_ID included Path and Resv messages can be refreshed using summary refreshes.