Hi,
I have a 2921 MGCP-controlled gateway with 2 BRI (1VIC2-2BRI), with direct inward dial (the two go on two identical NT with same cabling).
One BRI is working as expected (going into MULTIPLE_FRAME_ESTABLISHED) . The other BRI "seems" to work (int bri0/1/1 goes up) but in show isdn status I can see that it never goes on MULTIPLE_FRAME_ESTABLISHED, and when I try to route call through that BRI they are re-routed to the first bri.
that's the configuration of the two bri
interface BRI0/1/0
no ip address
isdn switch-type basic-net3
isdn overlap-receiving
isdn tei-negotiation first-call
isdn point-to-point-setup
isdn incoming-voice voice
isdn bind-l3 ccm-manager service mgcp
isdn static-tei 0
end
interface BRI0/1/1
no ip address
isdn switch-type basic-net3
isdn overlap-receiving
isdn tei-negotiation first-call
isdn point-to-point-setup
isdn incoming-voice voice
isdn bind-l3 ccm-manager service mgcp
isdn static-tei 0
end
#sh isdn status
Global ISDN Switchtype = primary-net5
%Q.931 is backhauled to CCM MANAGER 0x0003 on DSL 0. Layer 3 output may not apply
ISDN BRI0/1/0 interface
dsl 4, interface ISDN Switchtype = basic-net3
L2 Protocol = Q.921 0x0000 L3 Protocol(s) = CCM MANAGER 0x0003
Layer 1 Status:
ACTIVE
Layer 2 Status:
TEI = 0, Ces = 1, SAPI = 0, State = MULTIPLE_FRAME_ESTABLISHED
Layer 3 Status:
0 Active Layer 3 Call(s)
Active dsl 4 CCBs = 0
The Free Channel Mask: 0x80000003
%Q.931 is backhauled to CCM MANAGER 0x0003 on DSL 5. Layer 3 output may not apply
ISDN BRI0/1/1 interface
dsl 5, interface ISDN Switchtype = basic-net3
L2 Protocol = Q.921 0x0000 L3 Protocol(s) = CCM MANAGER 0x0003
Layer 1 Status:
ACTIVE
Layer 2 Status:
TEI = 0, Ces = 1, SAPI = 0, State = TEI_ASSIGNED
Layer 3 Status:
0 Active Layer 3 Call(s)
Active dsl 5 CCBs = 0
The Free Channel Mask: 0x80000003
and that's the output of
debug isdn q921
Jan 28 06:52:54.113: ISDN BR0/1/1 Q921: L2_EstablishDataLink: sending SABME
Jan 28 06:52:54.113: ISDN BR0/1/1 Q921: User TX -> SABMEp sapi=0 tei=0
Jan 28 06:52:55.113: ISDN BR0/1/1 Q921: User TX -> SABMEp sapi=0 tei=0
Jan 28 06:52:56.113: ISDN BR0/1/1 Q921: User TX -> SABMEp sapi=0 tei=0
Jan 28 06:52:56.441: ISDN BR0/1/0 Q921: User TX -> RRp sapi=0 tei=0 nr=31
Jan 28 06:52:56.453: ISDN BR0/1/0 Q921: User RX <- RRf sapi=0 tei=0 nr=17
Jan 28 06:52:57.113: ISDN BR0/1/1 Q921: User TX -> SABMEp sapi=0 tei=0
Jan 28 06:52:58.113: ISDN BR0/1/1 Q921: User TX -> IDVER ri=0 ai=0
Any help will be greatly appreciated..Thanks a lot
gianstefano
