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Nortel Ethernet Routing Switch 5500 Series
Configuration-IP Routing
Protocols
NN47200-503 (217465-C)
.
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Document status: Standard Document version: 03.01 Document date: 27 August 2007 Copyright © 2005-2007, Nortel Networks All Rights Reserved. The information in this document is subject to change without notice. The statements, configurations, technical data, and recommendations in this document a re believed to be accurate and reliable, but are presented without express or implied warranty. Users must take full responsibility for their applications of any products specified in this document. The in
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reasonable means to determine Customer’s Software activation or usage levels. If suppliers of third party software included in Software require Nortel Networks to include additional or different terms, Customer agrees to abide by such terms provided by Nortel Networks with respect to such third party software. 2. Warranty. Except as may be otherwise expressly agreed to in writing between Nortel Networks and Customer, Software is provided "AS IS" without any warranties (conditions) of any kind. N
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5 Revision History Date Revised Version Reason for revision July 2005 1.00 New document for Software Release 4.2. July 2006 2.00 Document updated for Software Release 5.0. .01 u August 2007 3 pdated for Software Release 5.1 Nortel Ethernet Routing Switch 5500 Series Configuration-IP Routing Protocols NN47200-503 03.01 Standard 5.1 27 August 2007 Copyright © 2005-2007, Nortel Networks .
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6 Revision History Nortel Ethernet Routing Switch 5500 Series Configuration-IP Routing Protocols NN47200-503 03.01 Standard 5.1 27 August 2007 Copyright © 2005-2007, Nortel Networks .
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7 Contents Preface 9 Nortel Ethernet Routing Switch 5500 Series 9 Related publications 10 Finding the latest updates on the Nortel web site 11 How to get help 12 An Introduction to IP Routing Protocols 13 IP routing 13 IP addressing 13 IP routing using VLANs 16 Brouter port 19 Management VLAN 20 Setting IP routing 20 Address Resolution Protocol (ARP) 21 Static routes 22 Non-local static routes 23 Routing Information Protocol (RIP) 23 Open Shortest Path First (OSPF) protocol 27 Route policies 35
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8 Contents Static route commands 59 Address Resolution Protocol (ARP) commands 64 Proxy ARP commands 66 Routing Information Protocol (RIP) commands 67 Open Shortest Path First (OSPF) commands 82 Route policy commands 101 Virtual Router Redundancy Protocol (VRRP) commands 104 Equal Cost MultiPath (ECMP) commands 110 Brouter port commands 112 UDP broadcast forwarding commands 113 DHCP relay commands 115 IP routing configuration examples 120 Address Resolution Protocol (ARP) configuration 120 Routing
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9 Preface This document provides information and instructions on the configuration of IP Routing on the 5500 Series Nortel Ethernet Routing Switch. Consult any documentation included with the switch and the product release notes (see "Related publications" (page 10)) for any errata before beginning the configuration process. Nortel Ethernet Routing Switch 5500 Series "5500 Series Switch Platforms" (page 9)outlines the switches that are part of the 5500 Series of Nortel Ethernet Routing Switches 55
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10 Preface Related publications For more information about the management, configuration, and use of the Nortel Ethernet Routing Switch 5500 Series, refer to the publications listed in"Nortel Ethernet Routing Switch 5500 Series Documentation" (page 10). Nortel Ethernet Routing Switch 5500 Series Documentation Title Description Part Number Nortel Ethernet Instructions for the installation of NN47200-300 Routing Switch 5500 a switch in the Nortel Ethernet Series Release 5.1 Routing Switch 5500 Seri
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Finding the latest updates on the Nortel web site 11 Title Description Part Number Nortel Ethernet Provides an overview of new NN47200-400 Routing Switch 5500 features, fixes, and limitations of Series Release Notes the 5500 Series switches. Also - Release 5.1 included are any supplementary documentation and document errata. Installing the Nortel Instructions for the installation and 217070-A Ethernet Redundant use of the Nortel Ethernet RPS 15. Power Supply 15 DC-DC Converter Instructions for th
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12 Preface How to get help If a service contract for the Nortel product has been purchased from a distributor or authorized reseller, contact the technical support staff for that distributor or reseller for assistance. If a Nortel service program was purchased, contact Nortel Technical Support. The following information is available online: contact information for Nortel Technical Support information about the Nortel Technical Solutions Centers information about the Express Routing Code (E
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13 An Introduction to IP Routing Protocols This chapter provides an introduction to IP routing and IP routing protocols used in the Nortel Ethernet Routing Switch 5500 Series. Subsequent chapters will provide a more detailed description of switch capabilities and configuration procedures. IP routing To configure IP routing on the Nortel Ethernet Routing Switch 5500 Series, use virtual local area networks (VLAN) to create virtual router interfaces by assigning an IP address to the VLAN. This sectio
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14 An Introduction to IP Routing Protocols Number of Nodes per Address Range Mask Class Networks Network 224.0.0.0 - D 239.255.255.254 Note: Class D addresses are primarily reserved for multicast operations although the addresses 224.0.0.5 and 224.0.0.6 are used by OSPF and 224.0.0.9 is used by RIP. 240.0.0.0 - E 240.255.255.255 Note: Class E addresses are reserved for research purposes. To express an IP address in dotted-decimal notation, each octet of the IP address is converted to a decimal n
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IP routing 15 A subnet address is created by increasing the network portion to include a subnet address, thus decreasing the host portion of the IP address. For example, in the address 128.32.10.0, the network portion is 128.32, while the subnet is found in the first octet of the host portion (10). A subnet mask is applied to the IP address and identifies the network and host portions of the address. " Subnet masks for Class B and Class C IP addresses" (page 15)illustrates how subnet masks used wi
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16 An Introduction to IP Routing Protocols Variable-length subnet masking (VLSM) is the ability to divide an intranet into pieces that match network requirements. Routing is based on the longest subnet mask or network that matches. IP routing using VLANs The Nortel Ethernet Routing Switch 5500 Series supports wire-speed IP routing between virtual LANs (VLAN). This type of routing is also referred to as virtual routing. When a virtual router interface is created for a specified VLAN, a specific IP
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IP routing 17 As with any IP address, virtual router interface addresses are also used for device management. For management over IP, any virtual router interface IP address can be used to access the switch as long as routing is enabled. When the Nortel Ethernet Routing Switch 5500 Series switch or stack is used without routing enabled, the Management VLAN is reachable only through the switch or stack IP address. With IP routing enabled on the switch or stack, any of the virtual router IP interf
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18 An Introduction to IP Routing Protocols Network with Multinetting You can configure a static route with the next hop on the secondary interface. You can also add static ARP for a given IP address in the same subnet of a secondary interface. Here are some limitations when you are working with secondary interfaces: you can have a maximum of eight secondary interfaces on each VLAN you can have a total maximum of 256 IP interfaces (including primary and secondary) all of the secondary interf
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IP routing 19 If secondary interfaces are configured on the management VLAN, routing cannot be disabled globally or on the management VLAN. Secondary IP interfaces on the management VLAN are purged from NVRAM when a unit leaves the stack and the switch does not have a manually configured IP the switch fails to get the IP address through the BootP mode The following are not supported on secondary interfaces: DHCRP Proxy ARP UDP broadcast IPFIX VRRP, OSPF, RIP For information about con
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20 An Introduction to IP Routing Protocols Management VLAN Prior to Software Release 4.0, the Management VLAN was the only VLAN that was used to carry the management traffic, including Telnet, Web, SNMP, BootP and TFTP for the switch. The Management VLAN always exists on the switch and cannot be removed. All IP settings, including switch IP address, stack IP address, subnet mask and default gateway, apply only to the Management VLAN. In this release of Nortel Ethernet Routing Switch 5500 Series,
