Question 168 of 490 from exam 400-051: CCIE Collaboration
Question
Refer to the exhibit.
![x. 981 is backhauled to CCM MANAGER Ox0003 on DSL 0. Layer 3 output may not apply
ISDN serial0/0/Q:23 interface
ds1_0, interface ISON Switchtype = primary-ni
L2 protocol = G.921 0x0000 L3 Protocols} = CCM MANAGER 0x000
Layer 1 status:
ACTIVE
Layer 2 Status:
TEI = 0, Cas = 1, SAPI = 0, State = MULTIPLE_FRAME_ESTABLISHED
Layer 3 statu
0 Active Layer 3 cal1(s)
active ds1 0 ccBs = 0
The Free Channel Mask: OxBO7FEFFE
Number of L2 Discards = 0, L2 Session 1D = 117
ISON Serial0/2/1:23 interface
ds11,"interface TSON switchtype = primary-m
Layer 1 Status:
ACTIVE
Layer 2 Status:
TEI = 0, Cas = 1, SAPI = 0, State = TET_ASSIGNED
Layer 3 statu
0 Active Layer 3 cal1(s)
active ds] 1 ccBs = 0
The Free Channel mask: 0x00000000
Number of L2 Discards = 0, L2 Session 1D = 0
rotal Allocated 1S0N ccas = 0](https://eaeastus2.blob.core.windows.net/optimizedimages/static/images/CCIE-Collaboration-Written/question/img0014700001.png)
Which two statements about the show command output are true? (Choose two.)
Answers
Explanations
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A. B. C. D. E.BD.
As you can see the T1 0/0/0:23 interface is active in layer 1,2(multi frame established) & 3,it means Q.931 signaling terminates at gateway and using backhauled technique q931 messages are going to CUCM server.
But in case of T1 0/2/1 port multi frames are not established in layer 2.So, its not configured properly & doesnt backhauling q931 messages to CUCM.