Cisco Systems ME3400G2CSA Layer 2 Virtual Private Network Services, Layer 3 Features

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Cisco ME 3400 EthernetAccess Switch SoftwareConfiguration Guide
78-17058-01
Chapter1 Overview Features
•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
– Shaped round robin (SRR) traffic shaping to mix packets from all queues to minimize traffic
burst
– Class-based traffic shaping to specify a maximum permitted average rate for a traffic class
– Port shaping to specify the maximum permitted average rate for a port
– Class-based weighted queuing (CBWFQ) to control bandwidth to a traffic class
– WTD to adjust queue size for a specified traffic class
– Low-latency priority queuing to allow preferential treatment to certain traffic
Layer 2 Virtual Private Network Services
Layer 2 virtual private network (VPN) features are only available when the sw i tch is running the metro
IP access or metro access image.
•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.
Layer 3 Features
Layer 3 features are only available when the switch is running the metro IP access image.
•HSRP for Layer 3 router redundancy
•IP routing protocols for load balancing and for constructing scalable, routed backbones :
– RIP Versions 1 and 2
– OSPF
– EIGRP
– BGP Version 4
•IP routing between VLANs (inter-VLAN routing) for full Layer3 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 addr esses of routers on directly
attached subnets