Chapter 10: Configuring Wan Interfaces - Avaya G250 Administration

Chapter 10: Configuring WAN interfaces

You can use an MM340 E1/T1 media module or an MM342 USP media module as an endpoint
for a WAN line on both the G250 and the G350. You can also use the Fast Ethernet port on the
G250/G350 chassis as the endpoint for a WAN line by configuring the Fast Ethernet interface
for PPP over Ethernet (PPPoE). The G250/G350 serves as a router, as well as the endpoint, for
the WAN line. For more information about routing, see
The G250/G350 supports the following WAN features:
PPP over channeled and fractional E1/T1 — the G250/G350 has the ability to map several
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PPP sessions to a single E1/T1 interface
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 Queueing (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
Backup interfaces on page 232.
on page 255.
on page 208.
Configuring the router
Configuring Weighted Fair
Issue 3 February 2007
on page 403.
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