Table of Contents
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Chapter 1
Overview
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Layer 2 Virtual Private Network Services
Layer 2 virtual private network (VPN) features are only available when the switch is running the metro
IP access or metro access image.
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Layer 3 Features
Layer 3 features are only available when the switch is running the metro IP access image.
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Weighted tail drop (WTD) as the congestion-avoidance mechanism for managing the queue lengths
and providing drop precedences for different traffic classifications
Table maps for mapping DSCP, CoS, and IP precedence values
Queuing and Scheduling
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Shaped round robin (SRR) traffic shaping to mix packets from all queues to minimize traffic
burst
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Class-based traffic shaping to specify a maximum permitted average rate for a traffic class
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Port shaping to specify the maximum permitted average rate for a port
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Class-based weighted queuing (CBWFQ) to control bandwidth to a traffic class
WTD to adjust queue size for a specified traffic class
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Low-latency priority queuing to allow preferential treatment to certain traffic
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IEEE 802.1Q tunneling enables service providers to offer multiple point Layer 2 VPN services to
customers
Layer 2 protocol tunneling to enable customers to control protocols such as BPDU, CDP, VTP,
PAgP, LACP, and UDLD protocols to be tunneled across service-provider networks.
HSRP for Layer 3 router redundancy
IP routing protocols for load balancing and for constructing scalable, routed backbones:
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RIP Versions 1 and 2
OSPF
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EIGRP
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BGP Version 4
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IP routing between VLANs (inter-VLAN routing) for full Layer 3 routing between two or more
VLANs, allowing each VLAN to maintain its own autonomous data-link domain
Policy-based routing (PBR) for configuring defined policies for traffic flows
Static IP routing for manually building a routing table of network path information
Equal-cost routing for load balancing and redundancy
Internet Control Message Protocol (ICMP) and ICMP Router Discovery Protocol (IRDP) for using
router advertisement and router solicitation messages to discover the addresses of routers on directly
attached subnets
Cisco ME 3400 Ethernet Access Switch Software Configuration Guide
Features
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Table of Contents
Troubleshooting
