Did you Miss our vLectures that were scheduled for this week & last week? No worries!

All our vLecture sessions are recorded and available for those who have missed our FREE CCIE vLectures and for participants who want to review the vLecture sessions again. We have saved the session recordings for you. Watch our world renowned CCIE instructors explaining specific technical topic in our technology-focused classes and capture the technical knowledge needed to increase your chances of passing CCIE exam.

CCIE Security

• Instructor: Tyson Scott
• Topic: VRF Aware VPN
• Link: http://ipexpert.acrobat.com/p72556833/

CCIE Routing & Switching & CCIE Service Provider

• Instructor: Marko Milivojevic
• Topic: Frame Relay
• Link: http://ipexpert.acrobat.com/p65152326/

• Instructor: Marko Milivojevic
• Topic: Interdomain Multicast Routing
• Link: http://ipexpert.acrobat.com/p12735927/

Do not miss our vLectures scheduled for the coming weeks. If you’re an IPexpert client and wish to join these sessions, please be sure to reserve a “virtual seat” now, these have been highly anticipated and we’re quite confident that these online training seats will fill up quickly.

When enabling the presence service in CUCME, you are using the SIP methods of Subscribe and Notify to allow users the ability to see changes in the line state of phones.  The phone acts as a watcher using the subscribe method to get status updates from a directory number assigned to a phone that acts as the presentity.  CUCME will respond to the request and each time there is a status update for that DN or presentity, CUCME will send all watchers a notification message.  CUCME presence can be applied either as a BLF speed-dial assigned to a line button or as BLF call-lists that will support status notifications of a presentity in the directories or call log (missed, placed, received) of the phone.

The first step when configuring presence on CUCME is to enable the router the ability to accept incoming presence requests.

BR2-RTR(config)#sip-ua

BR2-RTR(config-sip-ua)# presence enable

The next step is to enable the presence service and the ability to globally monitor all directory number that will need to be enabled for “watching” via the call lists and directories of the local phones.

BR2-RTR(config)#presence

BR2-RTR(config-presence)#presence call-list

Then configure the directory numbers that will be enabled for watching.

SCCP Phones

BR2-RTR(config)#ephone-dn 1

BR2-RTR(config-ephone-dn)#allow watch

SIP Phones

BR2-RTR(config)#voice register dn 1

BR2-RTR(config-register-dn)#allow watch

!

BR2-RTR(config)#voice register global

BR2-RTR(config-register-global)#create profile

BR2-RTR(config-register-global)#reset

At this point, if BLF monitoring of directory numbers that appear in the call lists and the directories has not been enabled globally, then this can be applied at the phone level and reset devices.

SCCP Phones

BR2-RTR(config)#ephone 1

BR2-RTR(config-ephone)#allow watch

!

BR2-RTR(config)#telephony-service

BR2-RTR(config-telephony)#create cnf

Creating CNF files

BR2-RTR(config-telephony)#reset all

SIP Phones

BR2-RTR(config)#voice register pool 1

BR2-RTR(config-register-pool)#allow watch

!

BR2-RTR(config)#voice register global

BR2-RTR(config-register-global)#create profile

BR2-RTR(config-register-global)#reset

In the event it was asked to enable BLF monitoring of a directory number and associate this DN with a speed-dial assigned to a line button on the phone then first ensure the DN has “allow watch” assigned and then perform the following.

SCCP Phones

BR2-RTR(config-ephone)#blf-speed-dial 1 3001 label Sales

BR2-RTR(config-ephone)#reset

SIP Phones

BR2-RTR(config)#voice register pool 1

BR2-RTR(config-register-pool)#blf-speed-dial 1 3001 label Sales

!

BR2-RTR(config)#voice register global

BR2-RTR(config-register-global)#create profile

BR2-RTR(config-register-global)#reset

By assigning a BLF speed-dial to a phone, it enables that phone to watch all ephone-dns or voice register dns with that same extension number at the same time acting as a speed-dial.  However, with CUCME version 7.0 the lamp will only illuminate red if the monitored dn is in use.  It will not indicate DND status and cannot distinguish which phone is using the extension number if it is shared across multiple phones or assigned to multiple DNs, much like that of the “monitor mode” button “m”.  The main difference to remember with Monitor Mode button is that it is only supported on SCCP devices and will only monitor a single ephone-dn <tag>.  It is not extension number based.  In CUCME 7.0 to achieve status updates if a phone is in DND mode, it can be achieved with the “watch mode” button “w”. This method of presence will watch all activity on the phone in which the ephone-dn  <tag> assigned is the primary extension.  It should be noted here that the ephone-dn used in this method could be shared across phones but not assigned as the primary extension to more than one phone.

To verify presence use the following commands.

-show presence global

-show presence subscription

To troubleshoot presence use the following commands.

-debug presence X

-debug ephone blf <mac-address>

-debug ccsip messages

Amy Ryan – CCIE #24677 (Voice)
Technical Instructor – IPexpert, Inc.
Mailto: aryan@ipexpert.com

Have you ever wanted to attend one of IPexpert’s industry-leading CCIE classes?
Have you ever had problems really understanding a specific technical topic?

Do you want to improve your chances at pass the CCIE Lab?

Do you want to see why IPexpert’s  CCIE instructors are considered the best in the training industry?

Do you want IPexpert, the company who has trained more CCIEs in the world, to help you?

…How would you like some FREE CCIE Lab training?

IPexpert is now offering FREE online training sessions to all IPexpert clients. If you want to improve your chances at passing Cisco’s rigorous and prestigious CCIE certifications, or if you simply want to fully-understand a specific technical topic – you can’t miss our FREE Online vLectures! Several times a week, you will be able to sit in, watch and interact with the IPexpert Instructor who will be teaching technology-focused classes on a specific track and topic. If you’re an IPexpert client and wish to join these sessions, please be sure to reserve a “virtual seat” now, these have been highly anticipated and we’re quite confident that these online training seats will fill up quickly.

CCIE Security:

• Date / Time: Aug 31^st at 4 PM EST
• Instructor:  Tyson Scott
• Topic: VRF Aware VPN

• Date / Time: Sept 7^th at 2 PM EST
• Instructor:  Tyson Scott
• Topic: Troubleshooting IPset

If you’re interested in this FREE online session, click here to Schedule Now!

CCIE Routing and Switching:

• Date / Time: Sept 2^nd at 10 AM EST
• Instructor:  Marko Milivojevic
• Topic: RIP

• Date / Time: Sept 10^th at 2 PM EST
• Instructor:  Marko Milivojevic
• Topic: Routing protocol redistribution

If you’re interested in this FREE online session, click here to Schedule Now!

CCIE Service Provider:

• Date / Time: Sept 2^nd at 10 AM EST
• Instructor:  Marko Milivojevic
• Topic: RIP

• Date / Time: Sept 10^th at 2 PM EST
• Instructor:  Marko Milivojevic
• Topic: Routing protocol redistribution

If you’re interested in this FREE online session, click here to Schedule Now!

China, MI — August 30, 2010 —

Currently less than 50 individuals worldwide hold the CCIE (Cisco Certified Internetworking Expert) Wireless certification. This industry-recognized certification offered by distinguishes network engineers as the most the elite in the high-tech wireless networking profession. CCIE Wireless certified engineers are some of the world’s highest paid and most sought after engineers. They’re typically found managing, designing and installing wireless systems and infrastructures.

To become CCIE Wireless certified, senior engineers spend upwards of 2 to 4 years preparing for an exhaustive 8-hour long hands-on “lab” exam conducted by Cisco (http://www.cisco.com), the global leader in computer networking solutions. IPexpert is a CCIE training organization, focused on preparing seasoned computer network engineers for these industry-recognized and distinguished exams, through various learning solutions including self-study workbooks, video tutorials, video classes, audio courses, online equipment, live online mentoring and instructor-led training courses.

IPexpert’s Founder & CEO, Wayne A. Lawson II says, “IPexpert is pleased to grow on its record as the world leader in CCIE lab training with our first-to-market complete self-study and classroom portfolio for CCIE Wireless candidates. We’ve become the “go to organization” for CCIE training, and we are going to be laser-focused on this track. Wireless is a very hot technology and we see this becoming one of the most coveted tracks within the CCIE certification arena.”

IPexpert plans on adding 4 self-study CCIE Wireless workbooks, a CCIE Wireless video on demand class, a CCIE Wireless audio on demand class and video tutorials for all workbook material. IPexpert’s CCIE Wireless training product portfolio also provides students with access to a collection of Cisco Wireless hardware and applications so students can gain the vital “hands on” preparation over the internet, regardless of their geographical location. IPexpert also provides free online mentoring to all of their students so they can be trained on various topics and technologies that are seen on this grueling exam. In addition to self-study resources, IPexpert has announced a 5-Day CCIE Wireless Boot Camp that they plan on running in January, 2011.

About IPexpert:

Founded in 2001, IPexpert is the leading CCIE training company for computer networking engineers pursuing the highest-level career certification offered by Cisco, the coveted CCIE certification. IPexpert has become the global leader serving its niche CCIE market, boasting the largest offering of self-study training products, Workbooks, Bootcamps, and online hardware available for rental.

In CUCME 4.1 and later versions, it is possible to provide end users the flexibility of creating ad-hoc conferences involving more than 3 parties with each participant potentially using a low bit rate codec such as g729. As you might expect, IOS software is unable to provide this function natively without the aid of Digital Signal Processors (DSP’s) most likely hosted on the CUCME gateway.

The first step when configuring the DSP’s for conferencing is to enable DSPFarm services on the gateway. By default the DSP’s can only be utilized for voice termination.

BR1-RTR(config)#voice-card 0
BR1-RTR(config-voicecard)#dsp service dspfarm

The DSP resources can only be controlled by the Call Control Agent (UCME in this case) using Skinny (aka SCCP). Skinny needs to be enabled on the gateway and a Call Control Agent(s) defined. In the example below the gateway will source SCCP packets from the primary IP Address assigned to interface FastEthernet0/0.11. The CUCUM IP Address is then provided to the gateway- incidentally the default version of SCCP used is 4.x so it is important the version is specified especially when trying to register an IOS MTP device to UCM since this is an invalid media resource in SCCP version 4.x.

BR1-RTR(config)#sccp local FastEthernet0/0.11
BR1-RTR(config)#sccp ccm 10.10.201.1 identifier 1 version 7.0
BR1-RTR(config)#sccp

A UCM group containing a list of Call Control Agents needs to be specified to support redundancy. In a stand alone UCME environment only a single Call Control Agent might be provisioned but in a UCM environment the Subscriber UCM, Publisher UCM and backup SRST CME gateway are the priority 1, 2 and 3 Call Control Agents respectively.

BR1-RTR(config)#sccp ccm group 1
BR1-RTR(config-sccp-ccm)# associate ccm 1 priority 1

The profile defining the characteristics of the conference bridge will be the next bit of configuration required. The codecs are defined and the maximum sessions specified. The DSPFarm will also need to be associated to the SCCP protocol at this stage (no other options at the time of writing).

BR1-RTR(config)#dspfarm profile 1 conference
BR1-RTR(config-dspfarm-profile)# codec g711ulaw
BR1-RTR(config-dspfarm-profile)# codec g711alaw
BR1-RTR(config-dspfarm-profile)# codec g729ar8
BR1-RTR(config-dspfarm-profile)# codec g729abr8
BR1-RTR(config-dspfarm-profile)# codec g729r8
BR1-RTR(config-dspfarm-profile)# codec g729br8
BR1-RTR(config-dspfarm-profile)# maximum sessions 2
BR1-RTR(config-dspfarm-profile)# associate application SCCP
BR1-RTR(config-dspfarm-profile)# no shutdown

Each conference session supports up to 8 parties in the same conference call and consumes half a DSP (PVDM2-8). A single DSP (PVDM2-16) supporting conferencing cannot be used for any other media resource- therefore it makes sense to have an even number of conference sessions.

The DSPFarm profile will need to be associated with a SCCP Group- a unique name is given to the conference bridge and this name will serve as the SCCP unique identifier when registering to the UCME.

BR1-RTR(config)#sccp ccm group 1
BR1-RTR(config-sccp-ccm)# associate profile 1 register cvg-cfb

Within the telephony-service CLI the conference bridge needs to be added as a known media resource and the maximum number of DSP Units specified. The UCME will cease to use software conferencing as a result of specifying the “conference hardware” command.

BR1-RTR(config)#telephony-service
BR1-RTR(config-telephony)# conference hardware
BR1-RTR(config-telephony)# sdspfarm units 1
BR1-RTR(config-telephony)# sdspfarm tag 1 br1cfb

Registration of the conference bridge to the UCME can be verified using the “show sdspfarm units” command.

Placeholder ephone-dn’s need to be added to support the number of active Ad-Hoc conference participants required. These DN’s do not need to be dialable numbers (unlike the case of Meet-me conferences). In this example 4 conference participants will be allowed due to there only being 4 available channels associated with ad-hoc conferencing. The ephone-dn’s are providing the lines to anchor the call whereas the DSP resource is used for the transcoding and audio mixing required for conferencing.  Conversely, if there were no restrictions placed on the number of available channels, an octo-line could be used to support 8 conference participants.

ephone-dn  5  dual-line
 number A1000
 conference ad-hoc
 preference 2
 no huntstop
!
ephone-dn  6  dual-line
 number A1000
 conference ad-hoc
 preference 1
 no huntstop
!

Tones can be provided to conference participants as and when a person joins or leaves a conference call. The frequency and cadence (including the tone-on and tone-off durations) are defined within the “voice class custom-cptone” CLI.

BR1-RTR(config)#voice class custom-cptone CONF-LEAVE
BR1-RTR(cfg-cptone)# dualtone conference
BR1-RTR(cfg-cp-dualtone)#  frequency 400 800
BR1-RTR(cfg-cp-dualtone)#  cadence 100 50 200 50 300 50 400 50
BR1-RTR(cfg-cp-dualtone)#!
BR1-RTR(cfg-cp-dualtone)#voice class custom-cptone CONF-JOIN
BR1-RTR(cfg-cptone)# dualtone conference
BR1-RTR(cfg-cp-dualtone)#  frequency 1000 2000
BR1-RTR(cfg-cp-dualtone)#  cadence 100 50 200 50 300 50 400 50

The custom tones are then assigned to the DSPFarm profile.

BR1-RTR(config)#dspfarm profile 1 conference
BR1-RTR(config-dspfarm-profile)#shut

Disabling profile will disconnect active CONFERENCING calls,
do you want to continue ? [yes/no] yes

BR1-RTR(config-dspfarm-profile)# conference-join custom-cptone CONF-JOIN
BR1-RTR(config-dspfarm-profile)# conference-leave custom-cptone CONF-LEAVE
BR1-RTR(config-dspfarm-profile)#no shut

To verify an active conference call is using DSP resources on a particular gateway use the “show sccp connections” command. To solve any unusual problems start of by bouncing the SCCP application from within the IOS (no sccp/sccp).

Amy Ryan – CCIE #24677 (Voice)
Technical Instructor – IPexpert, Inc.
Mailto: aryan@ipexpert.com

Have you ever wanted to attend one of IPexpert’s industry-leading CCIE classes?
Have you ever had problems really understanding a specific technical topic?

Do you want to improve your chances at pass the CCIE Lab?

Do you want to see why IPexpert’s  CCIE instructors are considered the best in the training industry?

Do you want IPexpert, the company who has trained more CCIEs in the world, to help you?

…How would you like some FREE CCIE Lab training?

IPexpert is now offering FREE online training sessions to all IPexpert clients. If you want to improve your chances at passing Cisco’s rigorous and prestigious CCIE certifications, or if you simply want to fully-understand a specific technical topic – you can’t miss our FREE Online vLectures! Several times a week, you will be able to sit in, watch and interact with the IPexpert Instructor who will be teaching technology-focused classes on a specific track and topic. If you’re an IPexpert client and wish to join these sessions, please be sure to reserve a “virtual seat” now, these have been highly anticipated and we’re quite confident that these online training seats will fill up quickly.

CCIE Security:

• Date / Time: Aug 31^st at 2 PM EST
• Instructor:  Tyson Scott
• Topic: VRF Aware VPN

If you’re interested in this FREE online session, click here to Schedule Now!

CCIE Routing and Switching:

• Date / Time: Aug 24^th at 10 AM EST
• Instructor:  Marko Milivojevic
• Topic: Frame Relay – From Basics to QoS

• Date / Time: Sept 2^nd at 10 AM EST
• Instructor:  Marko Milivojevic
• Topic: RIP

If you’re interested in this FREE online session, click here to Schedule Now!

CCIE Service Provider:

• Date / Time: Aug 24^th at 10 AM EST
• Instructor:  Marko Milivojevic
• Topic: Frame Relay – From Basics to QoS

• Date / Time: Sept 2^nd at 10 AM EST
• Instructor:  Marko Milivojevic
• Topic: RIP

If you’re interested in this FREE online session, click here to Schedule Now!

I remember a time when I taught a class called CIT (Cisco Internetwork Troubleshooting) and there was a wonderful rule that made all the students sweat a little more and all the instructors give that old Dr.Claw laugh (From Inspector Gadget if you have no idea what I’m talking about).  Essentially it allowed the Instructor to do things that were really mean and evil and forced the students NOT to take the easy way out.  What was that rule?  When troubleshooting you may NOT use the command Show Running-Config or any variant of it.

Some of you are thinking….wow- I would be lost.  To be honest I would be as well depending on the technology and the situation I’m in.  So I won’t burden you with that rule.  However, I would like to share a command that does’t just give you the running configuration on the ASA, rather it gives you the “real” running configuration.  What am I talking about?  Well, simply put- show run all…

That’s right!  While many of you know this deep dark secret (it’s not really a secret)  other don’t.  So there ya go!  A little tipt to put in your tip jar.

So the next time the boss says, “Man I cant remember the syntax of the default group policy on our ASA,” you can quickly respond with…

(type..type..type…)

ciscoasa# sh run all group-policy

group-policy DfltGrpPolicy internal

group-policy DfltGrpPolicy attributes

banner none

wins-server none

dns-server none

dhcp-network-scope none

vpn-access-hours none

vpn-simultaneous-logins 3

vpn-idle-timeout 30

vpn-session-timeout none

vpn-filter none

ipv6-vpn-filter none

vpn-tunnel-protocol IPSec l2tp-ipsec webvpn

password-storage disable

ip-comp disable

re-xauth disable

group-lock none

pfs disable

ipsec-udp disable

ipsec-udp-port 10000

split-tunnel-policy tunnelall

split-tunnel-network-list none

default-domain none

split-dns none

intercept-dhcp 255.255.255.255 disable

<--- More --->

“It’s DfltGrpPolicy boss.  Anything else you need before I head to lunch?”

-Regards

Brandon Carroll – CCIE #23837

Did you Miss our vLectures that were scheduled for this week & last week? No worries!

All our vLecture sessions are recorded and available for those who have missed our FREE vLecture and for participants who want to review the vLectures sessions again. We have saved the session recordings for you. Watch our world renowned CCIE instructors explaining specific technical topic in our technology-focused classes and capture the technical knowledge needed to increase your chances of passing CCIE exam.

CCIE Voice

• Instructor: Vik Malhi
• Topic: Cube
• Link: http://ipexpert.acrobat.com/p18636770/

• Instructor: Amy Ryan
• Topic: Unity Connection Integration
• Link: http://ipexpert.acrobat.com/p61951501/

Do not miss our vLectures scheduled for the coming weeks. If you’re an IPexpert client and wish to join these sessions, please be sure to reserve a “virtual seat” now, these have been highly anticipated and we’re quite confident that these online training seats will fill up quickly.

When dealing with call routing in general, it is no secret that there are countless ways to manipulate dialed digits to invoke a requested behavior.  Anyone who has began studying to achieve the Cisco CCIE Voice certification has become quite aware of the plethora of methods to utilize when completing the Call Routing sections of the lab blueprint.  It is quite possible when you sit the CCIE Voice lab to be asked to do some sort of Call Blocking as well, whether that is in the form of blocking calls to or from certain numbers, number type or even blocking calls based on date or time of day.    In this blog, we will focus on after-hours call blocking as it pertains to Cisco Unified Communications Manager Express (CUCME) or CME-as-SRST.  When implemented, calls matching against a pattern of specified digits will be prevented from proceeding based on day of the week and/or time of day.

CUCME call-blocking configuration applies to all SCCP, H.323, SIP and POTS calls that go through the CUCME router. All incoming calls to the router, except calls from an exempt phone, are also checked against the after-hours configuration.  Lets take a quick glance at a sample configuration to see how this is applied.

telephony-service

after-hours block pattern 1 9011
after-hours block pattern 2 1212
after-hours block pattern 3 1617 7-24
after-hours date Dec 25 12:00 23:59
after-hours day Sun 12:00 07:00
after-hours day Mon 19:00 06:59
after-hours day Tue 19:00 06:59
after-hours day Wed 19:00 06:59
after-hours day Thu 19:00 06:59
after-hours day Fri 19:00 06:59
after-hours day Sat 13:00 12:00

In this example, calls made beginning with pattern 9011, 1212 or 1617 are blocked during the above schedule.  In this schedule, each day of the week has a defined time for blocking calls to the listed patterns.  There are a couple of things to take into consideration when setting up the time of day in this fashion.  Let’s use Monday as an example.  Based on above, calls are blocked on from 7pm Monday evening until 7am exactly Tuesday morning.   Anytime the first timestamp listed is of a higher number than the second timestamp listed, we know that the second timestamp indicates the time of the following day.  In addition, if we had used “07:00” instead of “06:59” here, then calls would have been blocked until 7:01am on Tuesday morning.  If we made this error on the day it counts, those points would be lost for us.  The above example also shows these types of calls cannot be made at anytime on December 25.  It further shows that calls matching pattern 1617 will be blocked all hours of all days.

When dealing with blocked calls, it is important to remember the configuration applies globally to all dial peers.  However, it may be requested to allow certain phones to be exempt when placing these types of calls.  There are a few methods that can be used to achieve this, such as at the individual directory number, phone-level or dial-peer.  It can also be set up so Individual phone users can override call blocking utilizing a PIN that has been assigned, however this method does not work on patterns that are blocking 24 by 7 such as pattern 3 in our example above.

Call Blocking Exemption for a Directory Number or Individual Phone

This method exempts all directory numbers associated with a phone from the after-hours call blocking configuration.

ephone 1
after-hour exempt
!
voice register dn or pool 1
after-hour exempt
To verify this:
BR2-RTR#sh ephone 
ephone-1[0] Mac:0024.142E.5BD1 TCP socket:[-1] activeLine:0 UNREGISTERED
mediaActive:0 offhook:0 ringing:0 reset:0 reset_sent:0 paging 0 debug:0 caps:0
IP:0.0.0.0 0 Unknown 0  keepalive 0 max_line 0
Preferred Codec: g711ulaw
after-hour exempt
BR2-RTR#sh voice register dial-peer  (SIP PHONES)

Call Blocking Exemption for a Dial Peer

This method allows H.323 and SIP trunk calls to proceed in spite of the after-hours configuration.  This is critical to remember as you could be doing TEHO routing of some fashion that would be prevented from occurring if you did not exempt the incoming voip dial peer from being blocked.

dial-peer voice 100 voip
incoming called-number .
paramspace callsetup after-hours-exempt  true
To verify this:
BR2-RTR#sh dial-peer voice
VoiceOverIpPeer100
……..
incoming call blocking:
translation-profile = `'
disconnect-cause = `no-service'
advertise 0x40 capacity_update_timer 25 addrFamily 4 oldAddrFamily 4
mailbox selection policy: none
type = voip, session-target = `',
technology prefix:
settle-call = disabled 

Amy Ryan – CCIE #24677 (Voice)
Technical Instructor – IPexpert, Inc.
Mailto: aryan@ipexpert.com

Have you ever wanted to attend one of IPexpert’s industry-leading CCIE classes?
Have you ever had problems really understanding a specific technical topic?

Do you want to improve your chances at pass the CCIE Lab?

Do you want to see why IPexpert’s  CCIE instructors are considered the best in the training industry?

Do you want IPexpert, the company who has trained more CCIEs in the world, to help you?

…How would you like some FREE CCIE Lab training?

IPexpert is now offering FREE online training sessions to all IPexpert clients. If you want to improve your chances at passing Cisco’s rigorous and prestigious CCIE certifications, or if you simply want to fully-understand a specific technical topic – you can’t miss our FREE Online vLectures! Several times a week, you will be able to sit in, watch and interact with the IPexpert Instructor who will be teaching technology-focused classes on a specific track and topic. If you’re an IPexpert client and wish to join these sessions, please be sure to reserve a “virtual seat” now, these have been highly anticipated and we’re quite confident that these online training seats will fill up quickly.

CCIE Voice:

• Date / Time: Aug 17^th at 4 PM EST
• Instructor:  Amy Ryan
• Topic: Unity Connections Integrations

If you’re interested in this FREE online session, click here to Schedule Now!

CCIE Routing and Switching:

• Date / Time: Aug 19^th at 10 AM EST
• Instructor:  Marko Milivojevic
• Topic: Interdomain Multicast Routing

• Date / Time: Aug 24^th at 10 AM EST
• Instructor:  Marko Milivojevic
• Topic: Frame Relay – From Basics to QoS

If you’re interested in this FREE online session, click here to Schedule Now!

CCIE Service Provider:

• Date / Time: Aug 19^th at 10 AM EST
• Instructor:  Marko Milivojevic
• Topic: Interdomain Multicast Routing

If you’re interested in this FREE online session, click here to Schedule Now!