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Community Manager

Ask the Expert: Mobile Wireless: How Your Cellular Phone Surfs the Internet

Mobile Wireless: How Your Cellular Phone Surfs the Internet with Deepak MichaelWith Deepak Michael

Welcome to the Cisco Support Community Ask the Expert conversation. This is an opportunity to learn and ask questions about Mobile wireless,long term evolution (LTE) and subscriber call flow with Cisco expert Deepak Michael.This is a continuation from the webcast on March 5th.

Deepak Michael is a network consulting engineer and technical lead in the AT&T Mobility team at Cisco. He is an expert in EPC and wireless mobility technologies, including Serving GPRS Support Node (SGSN), Gateway GPRS Support Node (GGSN), and EPC. Deepak has 14 years of experience working with domestic and international customers. He holds a degree in Business Administration from University of Phoenix. He holds CCNP and CCIP as well as mobile specialist certifications.

Remember to use the rating system to let Deepak know if you have received an adequate response. 

Deepak might not be able to answer each question due to the volume expected during this event. Remember that you can continue the conversation on the Mobility sub community discussion forum shortly after the event. This event lasts through March,8 2013. Visit this forum often to view responses to your questions and the questions of other community members. 

Jackson Braddock

Can you explain TEID? I would like to understand more information about this.

Hello Jackson,

Each device along the control and user plane path will have a Tunnel End Point ID created for the end user. Bear in mind the TEID is unique amongst the subsribers within the network to help formulate a tunnel within the network.


Great topic!

It will be fantastic if you can share some presentation that covers basics related to this topic (for example, I've heard about ASR5K and its role in 3G and 4G networks but would like to get better understanding).

Can you compare EPC with some MPLS network designed to carry voice and data traffic, i.e. what features/devices are mandatory to have so we can call it Evolved Packet Core?

How asr 5k handles coexistance of GGSN and PGW? Is the same card able to offer MME and SGW fuctionality or this is separate product/card?

Thanks for opening this discussion!

Community Manager


A person in the live event wanted to know, in regards to the control plane and user plane diagrams, if they are in the 2G-4G evolution.

Thannks a lot,

Cisco Moderator

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