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Current cisco cse News

Catalyst QoS: IP Telephony Endpoints

Tue, 26 Feb 2008 21:53:45 +0000
Catalyst QoS configuration for IP Telephony endpoints is one of the CCIE Voice labs topics. Many people have issues with that one, because of need to memorize a lot of SRND recommendations to do it right. The good news is that during the lab exam you have full access to the QoS SRND documents and ...]


PPP Virtual template and Frame-relay

Wed, 30 Aug 2006 06:31:41 +0000
To configure a virtual template for MLP LFI on a frame-relay subinterface, you have to remove the DLCI configured under that subinterface first before reapplying it back with the ppp keyword.
int s0/0
no frame-relay interface-dlci 30
 frame-relay interface-dlci 30 ppp virtual-template 1
Apply any LLQ, IP settings, ppp configs under the virtual template interface.
...]

Creating a loopback dial-peer for testing

Fri, 28 Jul 2006 06:22:59 +0000
The IPIPGW supports configuration of an RTP loopback dial peer for use in verifying and troubleshooting H.323 networks. When a call encounters an RTP loopback dial peer, the gateway automatically signals call connect and loops all voice data back to the source. In contrast to normal calls through the VoIP-to-VoIP gateway, RTP loopback calls consist ...]

In those days, the hands-on test was two days. One day of build-it and one day of fix-it after they break it. Stuart Biggs, one of the senior Customer Engineers at Cisco, assembled the lab gear and wrote up the test. The network gear was AGS, AGS+, and MGS routers. Cisco didn’t have switches at that time. I kept Stuart running around getting documentation, appliques (for the AGS gear), cables, and other things. I don’t know which of the two of us was busier.

Gatekeeper trunk redundancy

Wed, 02 Aug 2006 18:56:42 +0000
If you have two gatekeeper trunks, one in a G711 region and the other in a G729 region and you setup the Route list with G711 as the first priority and G729 as the second priority and the gatekeeper does not have enough bandwidth to process a G711 call, then it will fallback and use ...]

T37 inbound fax to Unity - debugs.

Mon, 18 Sep 2006 02:03:49 +0000
OUtput of debug fax mspi all on T37 router. (First few lines are from debug isdn q931 to show the fax call come into the t37 router)
A successful fax inbound from the router to Unity will throw the following debugs.
PSTNSw#
Sep 17 14:55:15.972: ISDN Se1/0/0:23 Q931: RX <- SETUP pd = 8  callref = 0×0009
        Bearer ...]

Week 20 Summary

Tue, 27 May 2008 12:58:55 +0000
Week 20 à “and then there were two….”





Week’s Study Time:
Study Hours = 14.5  inc.
Lab Hours = 0
Total study time so far:
Total Study Hours = 246  inc.
Total Lab Hours = 18.5
What I have studied this week:
AAA
PPP Security
DAI
Private VLANs
Port Security
802.1x
DHCP Snooping
IP Source Guard
Storm Control
Protected Ports + Port Blocking
SNMP/Logging
Router Services
Reflexive ACLs
Time Based ACLs
Turbo ACLs
ACL Logging
Port ACLs
VLAN Maps
TCP Intercept
Reverse Path ...]

IP Services … conquered?

Sun, 18 May 2008 19:49:35 +0000
IP Services is a bizarre hodgepodge of every little feature that doesn’t quite fit anywhere else, but has to do with IP … probably. It’s hard to know how much energy to dedicate to IP Services, as you’re practically guaranteed to not be tested on most things you read. I’m taking the Brians’ ...]

It is with a heavy heart that we have come to the end of this beautiful composition on cisco cse. Please do disburse its beauty to others.
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