HP Media Gateways G250, Media Gateways G350 Routing features

Summary of services

- Egress QoS List

Access control lists define which packets should be forwarded or denied access to the network. QoS lists change the DSCP and 802.1p priority of routed packets according to the packet characteristics.

●Policy-based routing. The G250/G350 features policy-based routing, which uses a policy list structure to implement a routing scheme based on traffic source, destination, type, and other characteristics. You can use policy-based routing lists (PBR lists) to determine the routing of packets that match the rules defined in the list. Common applications include separate routing for voice and data traffic, routing traffic originating from different sets of users through different Internet connections (Internet Service Providers), and defining backup routes for defined classes of traffic.

●RTP Header Compression. The G250/G350 saves up to 60% of the bandwidth necessary using RTP compression. It also enhances the efficiency of voice transmission over the network by compressing the headers of Real Time Protocol (RTP) packets, thereby minimizing the overhead and the delays involved in RTP implementation.

●TCP Header Compression. The G250/G350 uses Transmission Control Protocol (TCP) header compression to reduce the amount of bandwidth needed for non-voice data. TCP header compression can be applied either as part of RTP Header Compression via IPCH, or using the Van Jacobson method defined in RFC 1144.

●Inter-Gateway Alternate Routing (IGAR). The G250/G350 uses IGAR as a means to use the PSTN as an alternative to the WAN interface under certain definable conditions. In providing an alternate routing mechanism, IGAR preserves the internal makeup of the call so that the call can be successfully terminated to its original internal destination.

Routing features

Both the G250 and the G350 have an internal router. You can configure the following routing features on the router:

●Interfaces

●Routing table

●VPN

●GRE tunneling

●DHCP and BOOTP relay

●DHCP server

●DHCP client

●Broadcast relay

●ARP table

●ICMP errors

50 Overview for the Avaya G250 and Avaya G350 Media Gateways

Contents

Overview for the Avaya G250 and Avaya G350 Media Gateways Page Contents About this book Chapter 1: Introduction Chapter 2: Optional components Chapter 3: Summary of services Chapter 4: Management, Security, Alarms and Troubleshooting Chapter 5: Documentation Appendix A: G250 and G350 capacities Appendix B: Supported Avaya telephones Appendix C: G250 technical specifications Appendix D: G350 technical specifications Index Page About this book Audience Downloading this book and updates from the web Related resources Technical assistance Sending us comments Page Chapter 1: Introduction Avaya G350 Media Gateway Overview Avaya G250 Media Gateway Overview Features Page Page G250 physical description Figure 3: The Avaya G250-DCPMedia Gateway Chassis Figure 4: The Avaya G250-DS1Media Gateway Chassis 16 Overview for the Avaya G250 and Avaya G350 Media Gateways Table 1: Fixed ports and buttons on the G250 front panel Port Description 1 of Table 1: Fixed ports and buttons on the G250 front panel (continued) 2 of G350 physical description Table 2: Fixed ports and buttons on the G350 front panel (continued) Figure 6: The G350 front panel ports and slots Table 3: Permitted slots for media modules Media Permitted slots module Table 3: Permitted slots for media modules (continued) Chapter 2: Optional components Supported media modules in the G350 Table 4: Supported media modules (continued) LAN media modules ! CAUTION: S8300 server Configuring MM711 ports MM711 also supports Configuring MM714 ports Configuring MM714 line ports MM714 also supports Configuring MM716 ports MM716 also supports Figure 10: The MM716 media module MM312 DCP media module Figure 11: The MM312 media module MM712 DCP media module Figure 12: The MM712 media module MM717 DCP media module MM710 E1/T1 media module Figure 14: The MM710 media module MM720 BRI media module Figure 15: The MM720 media module MM722 BRI media module Figure 16: The MM722 media module Necessary cable MM314 features MM316 features Media module slot configurations in the G350 Supported media modules in the G250 Page Chapter 3: Summary of services Media gateway services Physical media — G350 Telephones Table 7: Telephones supported and ports provided Telephone type Ports Physical media — G250 Media Gateway Controllers Supported S8XXX servers Table 11: MGCs supported by the Avaya G250 and Avaya G350 Media Gateways MGCs Type Usage Page MGC management Avaya CM features Avaya CM software applications Additional features Call center capabilities Emergency Transfer Relay (ETR) LAN services Power over Ethernet (PoE) VLANs WAN services Avaya G250 and G350 support Media modules necessary for each WAN line Table 12: Outside WAN lines supported and matching media modules WAN line Media modules WAN features Routing features Page Page Chapter 4: Management, Security, Alarms and Troubleshooting Management applications Management access security features Network security features Alarms and troubleshooting features Front panel LEDs Automatic error detection SNMP Packet sniffing VoIP debugging using RTP-MIB Object tracking Converged Network Analyzer (CNA) test plug Link Layer Discovery Protocol (LLDP) Page Chapter 5: Documentation Page Appendix A: G250 and G350 capacities G250 maximum media gateway capacities Table 13: G250 media gateway capacities (continued) Miscellaneous G350 maximum media gateway capacities Table 14: G350 media gateway capacities (continued) S8300 maximum capacities Page Appendix B: Supported Avaya telephones Avaya analog telephones Appendix C: G250 technical specifications G250 specifications G250 power cord specifications G250 media module specifications Appendix D: G350 technical specifications G350 specifications G350 power cord specifications G350 media module specifications Numerical 74 Overview for the Avaya G250 and Avaya G350 Media Gateways Page 76 Overview for the Avaya G250 and Avaya G350 Media Gateways