From: yakout esmat (yesmat@xxxxxxxxxxxxxx)
Date: Wed Apr 17 2002 - 07:12:20 GMT-3
Not if you are using Simulator.
If you are using sim, then both layers 1&2 will be deactivated as shown:
r5#sh isdn stat
Global ISDN Switchtype = basic-net3
ISDN BRI0 interface
dsl 0, interface ISDN Switchtype = basic-net3
Layer 1 Status:
DEACTIVATED
Layer 2 Status:
Layer 2 NOT Activated
Layer 3 Status:
0 Active Layer 3 Call(s)
Active dsl 0 CCBs = 0
The Free Channel Mask: 0x80000003
Number of L2 Discards = 0, L2 Session ID = 9
Total Allocated ISDN CCBs = 0
Cheers
Ya
-----Original Message-----
From: nobody@groupstudy.com [mailto:nobody@groupstudy.com]On Behalf Of
James Self
Sent: Wednesday, April 17, 2002 3:57 AM
To: Babacar Diop; ccielab@groupstudy.com
Subject: RE: ISDN backup interface
yes and no to your answer layer 1 will be deactivated but layer 2 should
have TEI assigned (get TEI's from local telco).....
Details to Help
If you do show interface on the bri you will see the interface in standby
mode. On a DDR/FSR you will see layer 1 activated and layer 2 muliframe
established.
See examples from a real live network not simulated:
DBU:
sh int bri0
BRI0 is standby mode, line protocol is down
Hardware is BRI
sh isdn stat
The current ISDN Switchtype = basic-ni1
ISDN BRI0 interface
Layer 1 Status:
DEACTIVATED
Layer 2 Status:
TEI = 112, State = TEI_ASSIGNED
TEI = 65, State = TEI_ASSIGNED
Spid Status:
TEI 112, ces = 1, state = 5(init)
spid1 configured, spid1 sent, spid1 valid
Endpoint ID Info: epsf = 0, usid = 0, tid = 1
TEI 65, ces = 2, state = 5(init)
spid2 configured, spid2 sent, spid2 valid
Endpoint ID Info: epsf = 0, usid = 1, tid = 1
Layer 3 Status:
0 Active Layer 3 Call(s)
DDR/FSR:
sh int bri0/0
BRI0/0 is up, line protocol is up (spoofing)
Hardware is PQUICC BRI with U interface
sh isdn stat
Global ISDN Switchtype = basic-ni
ISDN BRI0/0 interface
dsl 0, interface ISDN Switchtype = basic-ni
Layer 1 Status:
ACTIVE
Layer 2 Status:
TEI = 104, Ces = 1, SAPI = 0, State = MULTIPLE_FRAME_ESTABLISHED
TEI = 113, Ces = 2, SAPI = 0, State = MULTIPLE_FRAME_ESTABLISHED
TEI 104, ces = 1, state = 8(established)
spid1 configured, no LDN, spid1 sent, spid1 valid
Endpoint ID Info: epsf = 0, usid = 0, tid = 1
TEI 113, ces = 2, state = 8(established)
spid2 configured, no LDN, spid2 sent, spid2 valid
Endpoint ID Info: epsf = 0, usid = 1, tid = 1
Layer 3 Status:
0 Active Layer 3 Call(s)
BUT to complicate things more when you are working with international
telco's you can see even with FSR/DDR you will see (sh isdn stat) layer 1
deactivated also....So be aware........
Thanks,
James L. Self
CCDP,CCNP,CCDA,CCNA,CNE
Sr. Network Engineer I
Lead Engineer
GNO/Advance Technical Support
Worldcom Managed Services
vnet 966-7450 or 919 377-7450
ATS_Team_C@lists.wcom.com
-----Original Message-----
From: nobody@groupstudy.com [mailto:nobody@groupstudy.com]On Behalf Of
Babacar Diop
Sent: Tuesday, April 16, 2002 1:16 PM
To: ccielab@groupstudy.com
Subject: ISDN backup interface
Is it normal that my BRi interface (calling side) shows the following status
when i use it as backup (before the primary interface goes down):
r5#sh isdn stat
Global ISDN Switchtype = basic-ni
ISDN BRI0 interface
dsl 0, interface ISDN Switchtype = basic-ni
Layer 1 Status:
DEACTIVATED
Layer 2 Status:
Layer 2 NOT Activated
TEI Not Assigned, ces = 1, state = 1(terminal down)
spid1 configured, spid1 NOT sent, spid1 NOT valid
TEI Not Assigned, ces = 2, state = 5(init)
spid2 configured, spid2 NOT sent, spid2 NOT valid
Layer 3 Status:
0 Active Layer 3 Call(s)
Active dsl 0 CCBs = 0
The Free Channel Mask: 0x80000003
Number of L2 Discards = 0, L2 Session ID = 72
The BRi on the other side (called side) show the following output:
r3#sh isdn stat
Global ISDN Switchtype = basic-ni
ISDN BRI0 interface
dsl 0, interface ISDN Switchtype = basic-ni
Layer 1 Status:
ACTIVE
Layer 2 Status:
TEI = 116, Ces = 1, SAPI = 0, State = MULTIPLE_FRAME_ESTABLISHED
TEI = 117, Ces = 2, SAPI = 0, State = MULTIPLE_FRAME_ESTABLISHED
TEI 116, ces = 1, state = 5(init)
spid1 configured, spid1 sent, spid1 valid
Endpoint ID Info: epsf = 0, usid = 2, tid = 1
TEI 117, ces = 2, state = 5(init)
spid2 configured, spid2 sent, spid2 valid
Endpoint ID Info: epsf = 0, usid = 4, tid = 1
Layer 3 Status:
0 Active Layer 3 Call(s)
Active dsl 0 CCBs = 0
The Free Channel Mask: 0x80000003
Number of L2 Discards = 0, L2 Session ID = 45
The calling side comes up and dials when i pull the cable from the primary
interface.
Also, are we allowed to pull the cable in the lab as this is the only way to
test it. Shutdown on the primary interface is not a good way as far as i
know
Thanks
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