IP Routing in a Single Area OSPF Network

Transcription

1 hp p ro curve 10/ 100- Tx l m o dule J4820A hpprocurve switch 5304XL J4850A hp proc urve 10 / T x l mo d ul e J4 820A hpprocurve switch 5308XL J4819A hp procurve Mini-GBIC xlm o d ule J4 878A hp proc urve Mini -GBIC xl m o dule J4 878A Use xl m o d u l e s o n ly Use xl m o d u l e s o n ly IP Routing in a Single Area OSPF Network The example configurations below provide IP routing between two HP ProCurve 5300XL Switches (Switch A and Switch B) using OSPF as the routing protocol. The two switches are within a single area OSPF domain. Switch A and B configured to provide IP routing between VLANs using only OSPF as the routing protocol. All protocols are switched within each VLAN. Switch B is configured to restrict advertisement of VLAN 40 by OSPF. This configuration example applies to the following products: J4819A HP ProCurve Switch 5308XL J4850A HP ProCurve Switch 5304XL OPSPF Area Switch A VLAN IP address xl mo dule VLAN link untagged for VLAN 10 IP address xl m o dule VLAN Switch B VLAN Page 1

2 WARNING: The example configuration below was created from a factory default configuration on the HP ProCurve 5300XL Switch. The first 3 commands in the sequence of CLI commands given below will first reset the switch back to factory default settings. We recommend saving your current configuration if necessary. Otherwise, skip the first 3 commands. NOTES: 1. The interface port numbers (e.g. interface a1) and the IP address (e.g ) may differ in your network, so adjust these values accordingly. 2. The HP ProCurve Switch 5300XL Series (e.g. HP 5304XL), type of module(s), and software version number below may not accurately reflect the device(s) you are configuring. 3. The area command is used to assign the 5300XLSwitches to the single backbone area. 4. The ip ospf area command is used to assign the individual interfaces to the OSPF area. 5. In the example below for Switch B, as soon as the redistribute connected command is issued for a given routing protocol, ALL connected routes are advertised within that routing protocol. The restrict /24 command is used in order to keep this directly connected network (e.g. VLAN 40) from being advertised through OSPF to Switch A. 6. In the example below, the redistribute connected command is needed in order for Switch A to learn (via OSPF) the directly connected network (e.g., the network) on Switch B and vice versa. By default the Switch 5300XL will not advertise directly connected OSPF networks. By default the Switch 5300XL will advertise directly connected RIP networks. 7. The configuration examples below were created on software version E Page 2

3 CONFIGURATION COMMANDS: (created on software version E.06.01) Switch A HP ProCurve Switch 5304XL# con HP ProCurve Switch 5304XL(config)# hostname Switch_A Switch_A(config)# vlan 10 Switch_A(vlan-10)# untag a1 Switch_A(vlan-10)# ip address /24 Switch_A(vlan-10)# Switch_A(config)# ip routing Switch_A(config)# router ospf Switch_A(ospf)# area Switch_A(ospf)# redistribute connected Switch_A(ospf)# vlan 10 Switch_A(vlan-10)# ip ospf area Switch_A(vlan-10)# vlan 20 Switch_A(vlan-20)# untag b1 Switch_A(vlan-20)# ip address /24 Switch B HP ProCurve Switch 5308XL# con HP ProCurve Switch 5308XL(config)# hostname Switch_B Switch_B(config)# vlan 10 Switch_B(vlan-10)# untag a1 Switch_B(vlan-10)# ip address /24 Switch_B(vlan-10)# Switch_B(config)# ip routing Switch_B(config)# router ospf Switch_B(ospf)# area Switch_B(ospf)# redistribute connected Switch_B(ospf)# restrict /24 Switch_B(ospf)# vlan 10 Switch_B(vlan-10)# ip ospf area Switch_B(vlan-10)# vlan 30 Switch_B(vlan-30)# untag b1 Switch_B(vlan-30)# ip address /24 Switch_B(vlan-30)# vlan 40 Switch_B(vlan-40)# untag b4 Switch_B(vlan-40)# ip address /24 Page 3

4 RESULTING CONFIGURATION: Switch A Startup configuration: ; J4850A Configuration Editor; Created on release #E hostname "Switch_A" time daylight-time-rule None cdp run module 2 type J4821A module 1 type J4820A ip routing snmp-server community "public" Unrestricted vlan 1 name "DEFAULT_VLAN" untagged A2-A24,B2-B4 ip address dhcp-bootp no untagged A1,B1 vlan 10 name "VLAN10" untagged A1 ip address vlan 20 name "VLAN20" untagged B1 ip address no aaa port-access authenticator active ip router-id router ospf area backbone redistribute connected vlan 10 ip ospf area backbone Page 4

5 RESULTING CONFIGURATION: Switch B Startup configuration: ; J4819A Configuration Editor; Created on release #E hostname "Switch_B" time daylight-time-rule None cdp run module 2 type J4821A module 1 type J4820A ip routing snmp-server community "public" Unrestricted vlan 1 name "DEFAULT_VLAN" untagged A2-A24,B2-B3 ip address dhcp-bootp no untagged A1,B1,B4 vlan 10 name "VLAN10" untagged A1 ip address vlan 30 name "VLAN30" untagged B1 ip address vlan 40 name "VLAN40" untagged B4 ip address no aaa port-access authenticator active ip router-id router ospf area backbone redistribute connected restrict vlan 10 ip ospf area backbone Page 5

6 VERIFICATION COMMANDS: 1. The following CLI commands can be used to display OSPF information: show ip ospf general show ip ospf interface show ip route ospf show ip route show ip ospf neighbor show ip ospf database link-state show ip ospf database external-link-state show ip ospf restrict Outputs from these show commands for this example follow below. Refer to Chapter 16 of the HP Procurve Series 5300XL Switches Management and Configuration Guide for detailed descriptions of each command's output. Switch_A# sh ip ospf general OSPF General Status OSPF protocol : enabled Router ID : RFC 1583 compatability : compatible Default import metric : 10 Default import metric type : external type 2 Area Border : no AS Border : yes External LSA Count : 2 External LSA Checksum Sum : Originate New LSA Count : 57 Receive New LSA Count : 115 Switch_B# sh ip ospf general OSPF General Status OSPF protocol : enabled Router ID : RFC 1583 compatability : compatible Default import metric : 10 Default import metric type : external type 2 Area Border : no AS Border : yes External LSA Count : 2 External LSA Checksum Sum : Originate New LSA Count : 115 Receive New LSA Count : 53 Switch_A# sh ip ospf interface OSPF Interface Status IP Address Status Area ID State Auth-type Cost Priority enabled backbone BDR none 1 1 Page 6

7 Switch_B# sh ip ospf interface OSPF Interface Status IP Address Status Area ID State Auth-type Cost Priority enabled backbone DR none 1 1 Switch_A# sh ip route ospf IP Route Entries Destination Network Mask Gateway Type Sub-Type Metric ospf External2 10 Switch_B# sh ip route ospf IP Route Entries Destination Network Mask Gateway Type Sub-Type Metric ospf External2 10 Switch_A# sh ip route IP Route Entries Destination Network Mask Gateway Type Sub-Type Metric VLAN10 connected VLAN20 connected ospf External reject static lo0 connected 0 Switch_B# sh ip route IP Route Entries Destination Network Mask Gateway Type Sub-Type Metric VLAN10 connected ospf External VLAN30 connected reject static lo0 connected VLAN40 connected 0 Page 7

8 Switch_A# sh ip ospf neighbor OSPF Neighbor Information Router ID Pri IP Address NbIfState State Rxmt QLen Events DR FULL 0 6 Switch_B# sh ip ospf neighbor OSPF Neighbor Information Router ID Pri IP Address NbIfState State Rxmt QLen Events BDR FULL 0 6 Switch_A# sh ip ospf link-state OSPF Link State Database for Area Advertising LSA Type Link State ID Router ID Age Sequence # Checksum Router x x Router x c 0x c Network x x f Switch_B# sh ip ospf link-state OSPF Link State Database for Area Advertising LSA Type Link State ID Router ID Age Sequence # Checksum Router x x Router x d 0x d Network x x Switch_A# sh ip ospf external-link-state OSPF External LSAs Link State ID Router ID Age Sequence # Checksum x x000077f x x Switch_B# sh ip ospf external-link-state OSPF External LSAs Link State ID Router ID Age Sequence # Checksum x x000075f x x Page 8

9 Switch_A# sh ip ospf restrict OSPF restrict list IP Address Mask Switch_B# sh ip ospf restrict OSPF restrict list IP Address Mask Page 9