Avaya G250 Administration page 130

Configuring WAN interfaces
PPP over USP
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PPPoE
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Unframed E1 for enabling full 2.048 Mbps bandwidth usage
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Point-to-Point frame relay encapsulation over channelized, fractional, or unframed E1/T1
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ports or over a USP interface
Frame relay — the G250/G350 supports the following LMI types:
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- ANSI (Annex D)
- ITU-T:Q-933 (Annex A0)
- LMI-Rev1
- No LMI
Backup functionality supported between any type of Serial Layer 2 interface. For more
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information, see
Dynamic CAC for Fast Ethernet, Serial, and GRE tunnel interfaces. For more information,
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see Dynamic CAC
Quality of Service (QoS) — the G250/G350 uses Weighted Fair VoIP Queuing (WFVQ) as
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the default queuing mode for WAN interfaces. WFVQ combines weighted fair queuing
(WFQ) for data streams and priority VoIP queuing to provide the real-time response time
that is required for VoIP. The G250/G350 also supports the VoIP Queue and Priority
Queue legacy queuing methods. For more information, see
VoIP Queuing (WFVQ)
Policy — each interface on the G250/G350 can have four active policy lists:
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- Ingress Access Control List
- Ingress QoS List
- Egress Access Control List
- 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. For more information, see
Each interface on the G250/G350 can also have an active policy-based routing list. For
more information, see
Header Compression — use of header compression reduces the size of packet headers,
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thus reducing the amount of bandwidth needed for data. RTP header compression
enhances the efficiency of voice transmission over the network by compressing the
headers of Real Time Protocol (RTP) packets, thereby minimizing the overhead and
delays involved in RTP implementation. TCP header compression reduces the amount of
bandwidth needed for non-voice traffic. For more information, see
compression
130 Administration for the Avaya G250 and Avaya G350 Media Gateways
Backup interfaces
on page 169.
on page 124.
Chapter 20: Configuring policy-based routing
on page 118.
on page 146.
Configuring policy
Configuring Weighted Fair
on page 441.
on page 465.
Configuring header