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nwGTPv2 is free and open source implementation of GPRS Tunneling Protocol version 2 (GTPv2) or Evolved GTP (eGTP). GTPv2 is primarily used for control signalling between Serving Gateway SGW and PDN Gateway (PGW) in Evolved Packet Core (EPC).
The OLSRd software as available from www.olsr.org is extended to take into account the cost of each available link. Link cost is expressed in terms of ETT (Expected Transmission Time), taking into account not only ETX but also medium speed (bits/second).
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