Configures the RSVP-TE protocol parameters for the specified VLAN.
|bundle_message_ milliseconds||Specifies the maximum time a transmit buffer is held to allow multiple RSVP messages to be bundled into a single PDU. The valid range is from 50 to 3000 milliseconds.|
|hello_keep_ number||Specifies the number of hello-time intervals that can elapse before an RSVP-TE peer is declared unreachable. The range is from one to 255.|
|hello_interval_ seconds||Specifies the RSVP Hello packet transmission interval. The valid range is from 1 to 60 seconds.|
|refresh_keep_ number||Specifies a factor to be used in calculating the maximum allowed interval without an RSVP refresh message before an RSVP session is torn down. The range is from one to 255.|
|refresh_seconds||Specifies the interval for sending refresh path messages. The range is from 1 to 600 seconds.|
|summary_refresh_milliseconds||Specifies the interval for sending summary refresh messages. The valid range is from 50 (1/20 second) to 10000 (10 seconds).|
|vlan||Specifies that the configured protocol parameters are for a specific VLAN.|
|vlan_name||Identifies a particular VLAN for which the protocol parameters are configured.|
|vlan all||indicates that the protocol configuration parameters apply to all RSVP-TE enabled VLANs.|
Bundle-message-time: 1000 milliseconds (1 second).
Hello-keep-multiplier value: 3.
Hello-time: 3 seconds.
Refresh-keep-multiplier value: 3.
Refresh-time: 30 seconds.
Summary-refresh-time: 3000 milliseconds (3 seconds).
This command configures the RSVP-TE protocol parameters for the specified VLAN. The VLAN keyword all indicates that the configuration changes apply to all VLANs that have been added to MPLS.
The hello-time value specifies the RSVP hello packet transmission interval. The RSVP hello packet enables the switch to detect when an RSVP-TE peer is no longer reachable. If an RSVP hello packet is not received from a peer within the configured interval, the peer is declared down and all RSVP sessions to and from that peer are torn down. The formula for calculating the maximum allowed interval is: [hello-time * hello-keep-multiplier]. The default hello-interval time is 3 seconds with a valid range from 1 to 60 seconds. The default hello-keep-multiplier value is three with a range from one to 255.
The refresh-time specifies the interval for sending refresh path messages. RSVP refresh messages provide “soft state” link-level keep-alive information for previously established paths and enable the switch to detect when an LSP is no longer active. Path messages are used to refresh the LSP if summary refresh is disabled. If summary refresh is enabled, summary refresh messages are sent in place of sending individual path messages for every LSP. The default refresh-time is 30 seconds. The minimum and maximum refresh-time values are one and 600 (or 10 minutes) respectively.
If summary refresh is enabled, summary refresh messages are sent at intervals represented by the configured summary-refresh-time. The configurable summary-refresh-time range is 50 milliseconds (one twentieth of a second) to 10000 milliseconds (10 seconds). The default setting for summary-refresh-time is 3000 milliseconds (3 seconds). RSVP sessions are torn down if an RSVP refresh message is not received from a peer within the configured interval. The formula for calculating the maximum allowed interval is: [(refresh-keep-multiplier + 0.5) * 1.5 * (refresh-time or summary-refresh-time)]. The default refresh-keep-multiplier value is three. The minimum and maximum refresh-keep-multiplier values are one and 255 respectively.
The bundle-message-time, specified in milliseconds, indicates the maximum time a transmit buffer is held to allow multiple RSVP messages to be bundled into a single PDU. The default bundle-message-time is 1000 milliseconds (one second). The bundle-message-time value may be set to any value between 50 milliseconds and 3000 milliseconds (or 3 seconds). Message bundling is only attempted when it is enabled.
NoteSummary refresh must be enabled using the “enable mpls rsvp-te summary-refresh” command for a configured summary-refresh-time to actually be used.
The following command sets the RSVP-TE hello time to 5 seconds on all MPLS interfaces:
configure mpls rsvp-te timers session hello-time 5 vlan all
This command was first available in ExtremeXOS 11.6.
This command is available only on the platforms that support MPLS as described in the Switch Engine 32.3 Feature License Requirements document.