Cisco Cisco Packet Data Gateway (PDG) Guía Para Resolver Problemas
SGSN-Global Configuration Mode Commands
▀ bvc-unblock
▄ Cisco ASR 5000 Series Command Line Interface Reference
OL-22947-02
bvc-unblock
This command enables (disabled by default) or disables the SGSN to unblock blocked BVCs based on the receipt of
uplink packets from the BSC.
uplink packets from the BSC.
Product
SGSN
Privilege
Security Administrator, Administrator
Syntax
Include
with the command to disable the function.
Include
with the command to disable this function.
Enables the BVC-Unblock function when the SGSN receives either a FLOW-CONTROL-BVC packet or a
UL-UNITDATA packet.
UL-UNITDATA packet.
Enables the BVC-Unblock function when the SGSN receives a FLOW-CONTROL-BVC packet.
Enables the BVC-Unblock function when the SGSN receives a UL-UNITDATA packet.
Usage
Configurations defined with this command are common to all NSE defined for the SGSN.
This command is useful if there is a BVC status mismatch across different SGSN managers (such as the
Session Manager and the Link Manager) when the BSC sends BVC-Block (SGSN should move to
BLOCKED) followed by a BVC-Reset (SGSN should move to UNBLOCKED). Such mismatches can easily
occur, particularly on Gb-IP network connection, when one link receives the BVC-Block and a different link
receives the BVC-Reset with little delay between the two.
If BVC-Unblock function is enabled, the SGSN ensures that BVCs which are in the BLOCKED state move to
the UNBLOCKED state upon receipt of the configured packet type(s).
This command is useful if there is a BVC status mismatch across different SGSN managers (such as the
Session Manager and the Link Manager) when the BSC sends BVC-Block (SGSN should move to
BLOCKED) followed by a BVC-Reset (SGSN should move to UNBLOCKED). Such mismatches can easily
occur, particularly on Gb-IP network connection, when one link receives the BVC-Block and a different link
receives the BVC-Reset with little delay between the two.
If BVC-Unblock function is enabled, the SGSN ensures that BVCs which are in the BLOCKED state move to
the UNBLOCKED state upon receipt of the configured packet type(s).
Example
Instruct the SGSN to perform BVC-Unblock when a mismatch occurs and the SGSN receives a FLOW-CONTROL-
BVC packet:
Instruct the SGSN to perform BVC-Unblock when a mismatch occurs and the SGSN receives a FLOW-CONTROL-
BVC packet: