One way calling issue on CME
I ran into my first real issue this evening. I was trying to set up 2 SIP and 2 SCCP phones on CME. Everything was working except one SIP phone couldn’t receive calls from the other phones. It could make calls though. All calls to that particular SIP phone with extension 3005 would come up busy.
debug ccsip messages didn’t show anything useful. Neither did a whole lot of other debugs. On a whim, I looked at debug voip dial-peer:
BR2#debug voip dialpeer voip dialpeer default debugging is on BR2# Feb 15 01:24:31.677: //-1/xxxxxxxxxxxx/DPM/dpMatchPeersCore: Calling Number=3005, Called Number=3005, Peer Info Type=DIALPEER_INFO_SPEECH Feb 15 01:24:31.677: //-1/xxxxxxxxxxxx/DPM/dpMatchPeersCore: Match Rule=DP_MATCH_DEST; Called Number=3005 Feb 15 01:24:31.677: //-1/xxxxxxxxxxxx/DPM/dpMatchPeersCore: Result=Success(0) after DP_MATCH_DEST Feb 15 01:24:31.677: //-1/xxxxxxxxxxxx/DPM/dpMatchPeersMoreArg: Result=SUCCESS(0) List of Matched Outgoing Dial-peer(s): 1: Dial-peer Tag=20002 2: Dial-peer Tag=40002
Now that doesn’t look right. Why would there be 2 matches? A SIP phone should create only 1 dial-peer in the 40,000 range. Sure enough, I accidentally created an SCCP entry via the ephone-dn command.
BR2#sh dial-peer voice summary dial-peer hunt 0 AD PRE PASS OUT TAG TYPE MIN OPER PREFIX DEST-PATTERN FER THRU SESS-TARGET STAT PORT 20001 pots up up 3001$ 0 50/0/1 20002 pots up up 3005$ 0 50/0/2 20003 pots up up 3002$ 0 50/0/3 40002 voip up up 3005 0 syst ipv4:10.10.202.54:50 40001 voip up up 3006 0 syst ipv4:10.10.210.251:8
Removing the offending ephone-dn resolved the issue. Well, that wasn’t really 2 hours wasted as I got a chance to look a little closer at many other useful debugs.
Which phones to buy for the home lab
As I am doing the research to build my home lab, one of the first issues I had to confront was the ip phones. With version 3, it looks the 7960s are not going to cut it. Even the 7961s are outdated. As can be seen from the equipment list, the actual lab will have 7965s. Some of the things the earlier generation phones don’t support are BLF, + dialing, many SIP features, g722 and ILBC codecs. Although I hear that the 7962s can work just as well, I decided to order some 7965s.
Feature Support by Protocol for Cisco Unified IP Phone:
7960: http://www.ciscosystems.cd/en/US/docs/voice_ip_comm/cuipph/7960g_7940g/7_0/sccp/english/administration/guide/7900afeatapp.html
7961: Can’t seem to find a comparable doc
7962: http://www.ciscosystems.com/en/US/docs/voice_ip_comm/cuipph/7962g_7942g/7_0/english/administration/guide/7962apxb.html
7965: http://www.ciscosystems.lt/en/US/docs/voice_ip_comm/cuipph/7965g_7945g/7_0/english/administration/guide/7965dif.html
Possible features:
http://www-europe.cisco.com/en/US/docs/voice_ip_comm/cucm/admin/7_0_1/ccmsys/a08ipph.html#wp1032225
HWIC-4ESW and 3750 vlan configuration
HWIC-4ESW:
http://www.cisco.com/en/US/docs/ios/lanswitch/configuration/guide/lsw_hwic_ethsw_ic_ps6441_TSD_Products_Configuration_Guide_Chapter.html#wp1046684
I don’t have this at my home setup and haven’t had to config it in the field. From the docs, the configuration here is similar to the old 2900s/3500s via the vlan-database command in enable mode.
enable vlan database vlan vlan-id vtp server|client|transparent|domain|password show vlan-switch
Also of note is that the ports on this module must be set to trunk mode for the ip phones.
interface FastEthernet1/0 switchport trunk native vlan 10 switchport mode trunk switchport voice vlan 110
3750:
http://www.cisco.com/en/US/docs/switches/lan/catalyst3750/software/release/12.2_44_se/comman/reference/cli2.html#wp7730585
“?” will be enough to get by on these switches. Pretty much similar to the other switches(3550s,3560s) as far as this section is concerned.
CCIE Voice Lab v3.0 Equipment and Software List
I know all too well how valuable it is to have a home rack . After all, debugs are a CCIE’s best friend.
However, looking over this list, it looks like remote rack time will be required — a lot of it. I think I have enough equipment to test at least 3/4 of the requirements. For the RS, I had the full rack at home. For the Security, I had enough to do around 90% of the workbooks that were out there. I used around 60 hours of remote rack time, mainly to work on my speed.
We’ll see how many remote rack hours I will have to put in for this cert.
===============
https://learningnetwork.cisco.com/docs/DOC-5292
Lab Equipment:
1. Cisco MCS-7845 Media Convergence Servers
2. Cisco 3825 Series Integrated Services Routers (ISR) (12.4T)
3. Cisco 2821 Series Integrated Services Routers (ISR) (12.4T)
4. ISR Modules and Interface Cards+ VWIC2-1MFT-T1/E1
- PVDM2
- HWIC-4ESW-POE
- NME-CUE
5. Cisco Catalyst 3750 Series Switches [12.2(44)SE]
6. IP Phones (7965) and Soft Clients(CUPC,CIPC[7.0(1)])
Software Versions
Any major software release which has been generally available for six months is eligible for testing in the CCIE Voice Lab Exam.
*Cisco Unified Communications Manager 7.0(1)
*Cisco Unified Communications Manager Express 7.0(1)
*Cisco Unified Contact Center Express 7.0(1)
*Cisco Unified Presence 7.0(1)
*Cisco Unity Connection 7.0(1)
*All routers use IOS version 12.4T Train.
*Cisco Catalyst 3750 Series Switches uses 12.2 Main Train
Network Interfaces
1.Fast Ethernet
2.Frame Relay
Telephony Interfaces
1.T1
2.E1
Information supplemented by https://supportforums.cisco.com/thread/2002747?tstart=0
CCIE Voice lab blueprint
Looks like it’s version 3 now.
Good news is that I’ve a little experience with of each of the topics. The bad news is that this experience is grossly inadequate for the IE. Actually, that’s not really bad news. As all of us who have gone through the CCIE certification process knows, the challenge of the lab is a given. Those who view this challenge as an argument will quickly find themselves, well, pursuing other challenges.
================
| 1.00 | Implement and Troubleshoot Campus Infrastructure and Services |
|---|---|
| 1.01 | VLAN |
| 1.02 | DHCP |
| 1.03 | TFTP |
| 1.04 | NTP |
| 2.00 | Implement and Troubleshoot CUCM Endpoints |
| 2.01 | CUCM SCCP Endpoints |
| 2.02 | CUCM SIP Endpoints |
| 3.00 | Implement and Troubleshoot CUCME Endpoints |
| 3.01 | CUCME SCCP Endpoints |
| 3.02 | CUCME SIP Endpoints |
| 4.00 | Implement and Troubleshoot Voice Gateways |
| 4.01 | T1/E1 PRI |
| 4.02 | T1/E1 CAS |
| 4.03 | H.323 |
| 4.04 | MGCP |
| 4.05 | SIP |
| 4.06 | H.323 RAS |
| 4.07 | IP-IP Gateway/CUBE |
| 5.00 | Implement and Troubleshoot Call Routing Policies |
| 5.01 | Route Patterns and Dial-peers |
| 5.02 | Digit Manipulations and Translations |
| 5.03 | Class of Services |
| 5.04 | Route Selection Preference and Redundancy |
| 5.05 | Mobility and Single Number Reach |
| 6.00 | Implement and Troubleshoot High Availability Features |
| 6.01 | SRST |
| 6.02 | AAR |
| 7.00 | Implement and Troubleshoot Media Resources |
| 7.01 | CODEC Selection and Flexibility |
| 7.02 | Conference Bridges |
| 7.03 | Transcoder |
| 7.04 | Music-on-hold |
| 7.05 | Media Resources Preference and Redundancy |
| 7.06 | Other CUCM Media Resources |
| 8.00 | Implement and Troubleshoot Supplementary Services |
| 8.01 | Call Park |
| 8.02 | Call Pickup |
| 8.03 | Barge |
| 8.04 | Callback |
| 8.05 | Other Supplementary Services |
| 9.00 | Implement and Troubleshoot Other CUCM Voice Applications |
| 9.01 | Extension Mobility |
| 9.02 | IPMA |
| 9.03 | Other CUCM Voice Applications |
| 10.00 | Implement and Troubleshoot QoS and CAC |
| 10.01 | L2/L3 Traffic Classifications and Policing |
| 10.02 | L2/L3 Queuing Mechanisms |
| 10.03 | L2 LFI |
| 10.04 | RSVP |
| 10.05 | Call Admission Control |
| 11.00 | Implement and Troubleshoot Messaging |
| 11.01 | Cisco Unity Connection |
| 11.02 | Cisco Unity Express |
| 11.03 | Call Handling and Routing |
| 12.00 | Implement and Troubleshoot Cisco Unified Contact Center Express |
| 12.01 | Advanced Configuration |
| 12.02 | Script Customization |
| 12.03 | Redundancy |
| 13.00 | Implement and Troubleshoot Cisco Unified Presence |
| 13.01 | CUCM Presence |
| 13.02 | Cisco Unified Presence Server Integration |
CCIE Voice written exam #350-030
http://www.cisco.com/web/learning/le3/ccie/voice/written_exam.html
Since my RS IE, I’ve never been one to prepare for the written. By this I mean, I figured if I prepare for the lab, then I would be more than ready for the written. In other words, when I feel like I have ready for the lab, I will sign up for the written. Still, given the long lead time for a seat in RTP (where I’ve sat for both labs), I may have to reconsider.
