Cisco Systems A9014CFD manual Layer 3 Features, Layer 3 VPN Services, Monitoring Features

Chapter 1 Cisco ASR 901 Router Overview

Features

•Per-port, per-VLAN QoS to control traffic carried on a user-specified VLAN for a given interface.

Layer 3 Features

•IP routing protocols for load balancing and for constructing scalable, routed backbones:

–OSPF

–BGP Version 4

–IS-IS dynamic routing

–BFD protocol Bidirectional Forwarding Detection (BFD) Protocol to detect forwarding-path failures for OSPF, IS-IS, and BGP routing protocols

•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

•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

Layer 3 VPN Services

These features are available only when the Cisco ASR 901router is running the Advance Metro IP services.

•Multiple VPN routing/forwarding (multi-VRF) instances in customer edge devices (multi-VRF CE) to allow service providers to support multiple virtual private networks (VPNs) and overlap IP addresses between VPNs

•MPLS VPN is supported.

Monitoring Features

•Router LEDs that provide port- and router-level status

•Syslog facility for logging system messages about authentication or authorization errors, resource issues, and time-out events

•Enhanced object tracking for HSRP clients (requires metro IP access image)

•IP Service Level Agreements (IP SLAs) support to measure network performance by using active traffic monitoring (requires metro IP access or metro access image)

•IP SLAs EOT to use the output from IP SLAs tracking operations triggered by an action such as latency, jitter, or packet loss for a standby router failover takeover (requires metro IP access or metro access image)

•EOT and IP SLAs EOT static route support to identify when a preconfigured static route or a DHCP route goes down (requires metro IP access or metro access image)

•Embedded event manager (EEM) for device and system management to monitor key system events and then act on them though a policy (requires metro IP access or metro access image)

Cisco ASR 901 Series Aggregation Services Router Software Configuration Guide

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