Tag Archives: TIED

Getting TEID up with GTP Tunnels

What’s the deal with Tunnel Endpoint Identifiers and what do they do?

A quick look at the Interface Types in the F-TIED field in GTPv2

These are my lecture notes from IMT’s NET02x (4G Network Essentials) course, I thought I’d post them here as they may be useful to someone. You can find my complete notes here. The LTE architecture compartmentalises the roles in the mobile network. For example the eNB concentrates on radio connection management, while the MME focuses … Continue reading IMTx: NET02x (4G Network Essentials) – Management of Data Flows – 7. NAS and Global View of Protocol Stack →

These are my lecture notes from IMT’s NET02x (4G Network Essentials) course, I thought I’d post them here as they may be useful to someone. You can find my complete notes here. Each MME can manage millions of UEs. To handle this load the requirements of each subscriber for the MME must be as minimal … Continue reading IMTx: NET02x (4G Network Essentials) – Management of Data Flows – 5/6. S1AP Connection →

These are my lecture notes from IMT’s NET02x (4G Network Essentials) course, I thought I’d post them here as they may be useful to someone. You can find my complete notes here. Establishing a GTP Tunnel When a new tunnel is setup between two nodes, GTP-C will be used to setup the tunnel and the … Continue reading IMTx: NET02x (4G Network Essentials) – Management of Data Flows – 4. Transmitting Packets in a Tunnel →

These are my lecture notes from IMT’s NET02x (4G Network Essentials) course, I thought I’d post them here as they may be useful to someone. You can find my complete notes here. As we’ve talked about traffic to and from UEs is encapsulated in GTP-U tunnels, with the idea that by encapsulating data destined for … Continue reading IMTx: NET02x (4G Network Essentials) – Management of Data Flows – 3. Identifying & Managing Tunnels →