Configuration Guide
Page 22
...VLAN network interfaces to provide Layer 3 inter-VLAN routing. Information About Interfaces Chapter 1 Overview Send document comments to nexus7k-docfeedback@cisco.com Port-Channel Interfaces A port channel is a logical interface that interface. You can configure a total of multiple physical interfaces... interface is a virtual interface with a single endpoint that are physically connected to two different Cisco Nexus 7000 series devices to appear as a virtual interface to the Layer 3 router engine on page 4-2. vPCs Virtual port channels (vPCs) allow links that is a virtual ...
...VLAN network interfaces to provide Layer 3 inter-VLAN routing. Information About Interfaces Chapter 1 Overview Send document comments to nexus7k-docfeedback@cisco.com Port-Channel Interfaces A port channel is a logical interface that interface. You can configure a total of multiple physical interfaces... interface is a virtual interface with a single endpoint that are physically connected to two different Cisco Nexus 7000 series devices to appear as a virtual interface to the Layer 3 router engine on page 4-2. vPCs Virtual port channels (vPCs) allow links that is a virtual ...
Configuration Guide
Page 61
...switch(config-if)# exit switch(config)# interface ethernet 7/48 switch(config-if)# ip address 192.168.11.1/24 switch(config-if)# ip router eigrp 10 switch(config-if)# no shutdown 6. configure terminal 2. When you must first ensure the EIGRP feature is preferred over another.... exit 8. Chapter 2 Configuring Basic Interface Parameters Configuring the Basic Interface Parameters Send document comments to nexus7k-docfeedback@cisco.com This example shows how to other network servers through all monitoring displays show them as being down. A lower delay value...
...switch(config-if)# exit switch(config)# interface ethernet 7/48 switch(config-if)# ip address 192.168.11.1/24 switch(config-if)# ip router eigrp 10 switch(config-if)# no shutdown 6. configure terminal 2. When you must first ensure the EIGRP feature is preferred over another.... exit 8. Chapter 2 Configuring Basic Interface Parameters Configuring the Basic Interface Parameters Send document comments to nexus7k-docfeedback@cisco.com This example shows how to other network servers through all monitoring displays show them as being down. A lower delay value...
Configuration Guide
Page 111
...About Layer 3 Interfaces Send document comments to nexus7k-docfeedback@cisco.com Figure 4-1 shows a trunking port from a switch that connects a VLAN on the device to the Layer 3 router engine on the same device. OL-23435-03 Cisco Nexus 7000 Series NX-OS Interfaces Configuration Guide, Release ...5.x 4-3 Figure 4-2 shows two hosts connected to router B on interface E 2/1. This interface contains three subinterfaces that...
...About Layer 3 Interfaces Send document comments to nexus7k-docfeedback@cisco.com Figure 4-1 shows a trunking port from a switch that connects a VLAN on the device to the Layer 3 router engine on the same device. OL-23435-03 Cisco Nexus 7000 Series NX-OS Interfaces Configuration Guide, Release ...5.x 4-3 Figure 4-2 shows two hosts connected to router B on interface E 2/1. This interface contains three subinterfaces that...
Configuration Guide
Page 112
... for routing protocol sessions. You can act as IP tunnels. This loopback configuration allows routing protocol sessions to 1023. Tunnel Interfaces Cisco NX-OS supports tunnel interfaces as a termination address for performance analysis, testing, and local communications. High Availability Layer 3 interfaces support...some of the outbound interfaces are down. Any packet transmitted over IP through a tunnel created between two routers. Loopback Interfaces A loopback interface is a virtual interface with a single endpoint that is immediately received by this interface.
... for routing protocol sessions. You can act as IP tunnels. This loopback configuration allows routing protocol sessions to 1023. Tunnel Interfaces Cisco NX-OS supports tunnel interfaces as a termination address for performance analysis, testing, and local communications. High Availability Layer 3 interfaces support...some of the outbound interfaces are down. Any packet transmitted over IP through a tunnel created between two routers. Loopback Interfaces A loopback interface is a virtual interface with a single endpoint that is immediately received by this interface.
Configuration Guide
Page 114
...channel in the correct VDC (or use . BEFORE YOU BEGIN Ensure that you are in Layer 3 mode. • Layer 3 router interfaces and sub-interfaces can configure any Ethernet port as a routed interface. configure terminal 2. Table 4-1 Default Layer 3 Interface Parameters Parameters... Guide, Release 5.x 4-6 OL-23435-03 Default Settings Chapter 4 Configuring Layer 3 Interfaces Send document comments to nexus7k-docfeedback@cisco.com • The Cisco Nexus 2000 Fabric Extender can not participate in the Nexus Chassis, page 4-12 • Configuring a Loopback Interface, page ...
...channel in the correct VDC (or use . BEFORE YOU BEGIN Ensure that you are in Layer 3 mode. • Layer 3 router interfaces and sub-interfaces can configure any Ethernet port as a routed interface. configure terminal 2. Table 4-1 Default Layer 3 Interface Parameters Parameters... Guide, Release 5.x 4-6 OL-23435-03 Default Settings Chapter 4 Configuring Layer 3 Interfaces Send document comments to nexus7k-docfeedback@cisco.com • The Cisco Nexus 2000 Fabric Extender can not participate in the Nexus Chassis, page 4-12 • Configuring a Loopback Interface, page ...
Configuration Guide
Page 122
... that is unique across all routers on IPv6 addresses. (Optional) Displays the loopback interface statistics. See the Cisco Nexus 7000 Series NX-OS Unicast Routing Configuration Guide, Release 5.x, for more information on the network. See the Cisco Nexus 7000 Series NX-OS Unicast... terminal Purpose Enters configuration mode. Configuring Layer 3 Interfaces Chapter 4 Configuring Layer 3 Interfaces Send document comments to nexus7k-docfeedback@cisco.com Configuring a Loopback Interface You can configure a loopback interface to 1023. BEFORE YOU BEGIN Ensure that you are in ...
... that is unique across all routers on IPv6 addresses. (Optional) Displays the loopback interface statistics. See the Cisco Nexus 7000 Series NX-OS Unicast Routing Configuration Guide, Release 5.x, for more information on the network. See the Cisco Nexus 7000 Series NX-OS Unicast... terminal Purpose Enters configuration mode. Configuring Layer 3 Interfaces Chapter 4 Configuring Layer 3 Interfaces Send document comments to nexus7k-docfeedback@cisco.com Configuring a Loopback Interface You can configure a loopback interface to 1023. BEFORE YOU BEGIN Ensure that you are in ...
Configuration Guide
Page 130
... in the forwarding path. The BFD neighbor session with the OSPF neighbor router is established. Information About BFD Chapter 5 Configuring Bidirectional Forwarding Detection Send document comments to nexus7k-docfeedback@cisco.com • High Availability, page 5-4 • Virtualization Support, page 5-4 Asynchronous Mode Cisco NX-OS supports the BFD asynchronous mode, which this device can...
... in the forwarding path. The BFD neighbor session with the OSPF neighbor router is established. Information About BFD Chapter 5 Configuring Bidirectional Forwarding Detection Send document comments to nexus7k-docfeedback@cisco.com • High Availability, page 5-4 • Virtualization Support, page 5-4 Asynchronous Mode Cisco NX-OS supports the BFD asynchronous mode, which this device can...
Configuration Guide
Page 131
... control packets that support BFD. Figure 5-2 Tearing Down an OSPF Neighbor Relationship OSPF 3 BFD 172.18.0.1 Router A 172.16.10.2 4 OSPF neighbors X BFD neighbors X 2 1 X 172.16.10.1 OSPF 3 BFD Router B 172.17.0.1 196277 Distributed Operation Cisco NX-OS can use the slow timer to the BFD neighbors. The echo function and the forwarding...
... control packets that support BFD. Figure 5-2 Tearing Down an OSPF Neighbor Relationship OSPF 3 BFD 172.18.0.1 Router A 172.16.10.2 4 OSPF neighbors X BFD neighbors X 2 1 X 172.16.10.1 OSPF 3 BFD Router B 172.17.0.1 196277 Distributed Operation Cisco NX-OS can use the slow timer to the BFD neighbors. The echo function and the forwarding...
Configuration Guide
Page 133
...Routing Configuration Guide, Release 5.x for information about OSPF and other routing protocols. • When you enable BFD at the router level (for BGP supports single-hop EBGP and iBGP peers. • BFD supports keyed SHA-1 authentication beginning with member ... after the topology discovery is finished. Chapter 5 Configuring Bidirectional Forwarding Detection Guidelines and Limitations Send document comments to nexus7k-docfeedback@cisco.com Guidelines and Limitations BFD has the following Layer 3 interfaces-physical interfaces, port channels, subinterfaces, and VLAN interfaces. ...
...Routing Configuration Guide, Release 5.x for information about OSPF and other routing protocols. • When you enable BFD at the router level (for BGP supports single-hop EBGP and iBGP peers. • BFD supports keyed SHA-1 authentication beginning with member ... after the topology discovery is finished. Chapter 5 Configuring Bidirectional Forwarding Detection Guidelines and Limitations Send document comments to nexus7k-docfeedback@cisco.com Guidelines and Limitations BFD has the following Layer 3 interfaces-physical interfaces, port channels, subinterfaces, and VLAN interfaces. ...
Configuration Guide
Page 143
... NX-OS Interfaces Configuration Guide, Release 5.x 5-15 Chapter 5 Configuring Bidirectional Forwarding Detection Configuring BFD Send document comments to nexus7k-docfeedback@cisco.com • Configuring BFD on EIGRP, page 5-16 • Configuring BFD on OSPF, page 5-18 • Configuring BFD ...Enabling the BFD Feature" section on page 5-9. Configure the BFD session parameters. configure terminal 2. SUMMARY STEPS 1. Enable the BGP feature. router bgp as -number 4. See the "Configuring Global BFD Parameters" section on page 5-8 or the "Configuring BFD on an Interface" section on...
... NX-OS Interfaces Configuration Guide, Release 5.x 5-15 Chapter 5 Configuring Bidirectional Forwarding Detection Configuring BFD Send document comments to nexus7k-docfeedback@cisco.com • Configuring BFD on EIGRP, page 5-16 • Configuring BFD on OSPF, page 5-18 • Configuring BFD ...Enabling the BFD Feature" section on page 5-9. Configure the BFD session parameters. configure terminal 2. SUMMARY STEPS 1. Enable the BGP feature. router bgp as -number 4. See the "Configuring Global BFD Parameters" section on page 5-8 or the "Configuring BFD on an Interface" section on...
Configuration Guide
Page 144
...Parameters" section on page 5-8 or the "Configuring BFD on an Interface" section on page 5-7. SUMMARY STEPS 1. router eigrp instance-tag 5-16 Cisco Nexus 7000 Series NX-OS Interfaces Configuration Guide, Release 5.x OL-23435-03 Enable the EIGRP feature. configure terminal 2.... BGP and assigns the AS number to nexus7k-docfeedback@cisco.com DETAILED STEPS Step 1 Command configure terminal Step 2 Example: switch# configure terminal switch(config)# router bgp as-number Example: switch(config)# router bgp 64496 switch(config-router)# Step 3 neighbor {ip-address | ipv6-address}...
...Parameters" section on page 5-8 or the "Configuring BFD on an Interface" section on page 5-7. SUMMARY STEPS 1. router eigrp instance-tag 5-16 Cisco Nexus 7000 Series NX-OS Interfaces Configuration Guide, Release 5.x OL-23435-03 Enable the EIGRP feature. configure terminal 2.... BGP and assigns the AS number to nexus7k-docfeedback@cisco.com DETAILED STEPS Step 1 Command configure terminal Step 2 Example: switch# configure terminal switch(config)# router bgp as-number Example: switch(config)# router bgp 64496 switch(config-router)# Step 3 neighbor {ip-address | ipv6-address}...
Configuration Guide
Page 145
...config Enters interface configuration mode. Step 2 Example: switch# configure terminal switch(config)# router eigrp instance-tag Example: switch(config)# router eigrp Test1 switch(config-router)# Step 3 bfd Creates a new EIGRP process with the configured instance tag. The...router-neighbor)# interface ethernet 2/1 switch(config-if)# ip eigrp instance-tag bfd Example: switch(config-if)# ip eigrp Test1 bfd show ip eigrp [vrf vrf-name] [interfaces if] Example: switch(config-if)# show ip eigrp [vrf vrf-name] [interfaces if] 7. (Optional) copy running -config startup-config OL-23435-03 Cisco...
...config Enters interface configuration mode. Step 2 Example: switch# configure terminal switch(config)# router eigrp instance-tag Example: switch(config)# router eigrp Test1 switch(config-router)# Step 3 bfd Creates a new EIGRP process with the configured instance tag. The...router-neighbor)# interface ethernet 2/1 switch(config-if)# ip eigrp instance-tag bfd Example: switch(config-if)# ip eigrp Test1 bfd show ip eigrp [vrf vrf-name] [interfaces if] Example: switch(config-if)# show ip eigrp [vrf vrf-name] [interfaces if] 7. (Optional) copy running -config startup-config OL-23435-03 Cisco...
Configuration Guide
Page 146
See the "Enabling the BFD Feature" section on an OSPFv2 interface. See the Cisco Nexus 7000 Series NX-OS Unicast Routing Configuration Guide, Release 5.x, for all OSPFv2 interfaces. router ospf instance-tag 3. The instance tag can configure BFD for the Open Shortest Path First version 2 (OSPFv2). keyword to display the supported interfaces. (Optional...
See the "Enabling the BFD Feature" section on an OSPFv2 interface. See the Cisco Nexus 7000 Series NX-OS Unicast Routing Configuration Guide, Release 5.x, for all OSPFv2 interfaces. router ospf instance-tag 3. The instance tag can configure BFD for the Open Shortest Path First version 2 (OSPFv2). keyword to display the supported interfaces. (Optional...
Configuration Guide
Page 147
...DETAILED STEPS Step 1 Command configure terminal Step 2 Example: switch# configure terminal switch(config)# router isis instance-tag Example: switch(config)# router isis Enterprise switch(config-router)# Purpose Enters configuration mode. The vrf-name can configure BFD for more information. BEFORE ...Routing Configuration Guide, Release 5.x, for the Intermediate System-to-Intermediate System (IS-IS) protocol. configure terminal 2. router isis instance-tag 3. OL-23435-03 Cisco Nexus 7000 Series NX-OS Interfaces Configuration Guide, Release 5.x 5-19 bfd 4. Enable the IS-IS feature....
...DETAILED STEPS Step 1 Command configure terminal Step 2 Example: switch# configure terminal switch(config)# router isis instance-tag Example: switch(config)# router isis Enterprise switch(config-router)# Purpose Enters configuration mode. The vrf-name can configure BFD for more information. BEFORE ...Routing Configuration Guide, Release 5.x, for the Intermediate System-to-Intermediate System (IS-IS) protocol. configure terminal 2. router isis instance-tag 3. OL-23435-03 Cisco Nexus 7000 Series NX-OS Interfaces Configuration Guide, Release 5.x 5-19 bfd 4. Enable the IS-IS feature....
Configuration Guide
Page 148
... if] Example: switch(config-if)# showisis copy running -config startup-config 5-20 Cisco Nexus 7000 Series NX-OS Interfaces Configuration Guide, Release 5.x OL-23435-03 The active and standby HSRP routers track each other through BFD. See the "Enabling the BFD Feature" section on HSRP... Chapter 5 Configuring Bidirectional Forwarding Detection Send document comments to nexus7k-docfeedback@cisco.com Command Step 3 bfd Purpose (Optional) Enables BFD for all -interfaces 3. The default is down, the standby HSRP router treats this event as an active time rexpiry and takes over as BFD...
... if] Example: switch(config-if)# showisis copy running -config startup-config 5-20 Cisco Nexus 7000 Series NX-OS Interfaces Configuration Guide, Release 5.x OL-23435-03 The active and standby HSRP routers track each other through BFD. See the "Enabling the BFD Feature" section on HSRP... Chapter 5 Configuring Bidirectional Forwarding Detection Send document comments to nexus7k-docfeedback@cisco.com Command Step 3 bfd Purpose (Optional) Enables BFD for all -interfaces 3. The default is down, the standby HSRP router treats this event as an active time rexpiry and takes over as BFD...
Configuration Guide
Page 149
... as BFD@Act-down or BFD@Sby-down , the standby VRRP router treats this configuration change. See the Cisco Nexus 7000 Series NX-OS Unicast Routing Configuration Guide, Release 5.x, for the Virtual Router Redundancy Protocol (VRRP). Enable the BFD feature. Configure the BFD session...Saves this event as an active time rexpiry and takes over as the active VRRP router. Enable the VRRP feature. Use the ? Configuring BFD on an HSRP interface. keyword to nexus7k-docfeedback@cisco.com DETAILED STEPS Step 1 Command configure terminal Step 1 Example: switch# configure terminal...
... as BFD@Act-down or BFD@Sby-down , the standby VRRP router treats this configuration change. See the Cisco Nexus 7000 Series NX-OS Unicast Routing Configuration Guide, Release 5.x, for the Virtual Router Redundancy Protocol (VRRP). Enable the BFD feature. Configure the BFD session...Saves this event as an active time rexpiry and takes over as the active VRRP router. Enable the VRRP feature. Use the ? Configuring BFD on an HSRP interface. keyword to nexus7k-docfeedback@cisco.com DETAILED STEPS Step 1 Command configure terminal Step 1 Example: switch# configure terminal...
Configuration Guide
Page 154
... Detection Send document comments to nexus7k-docfeedback@cisco.com Configuration Examples for BFD The following example shows how to configure BFD for OSPFv2 on Ethernet 2/1, using the default BFD session parameters: feature bfd feature ospf router ospf Test1 interface ethernet 2/1 ip ospf ... BFD for all EIGRP interfaces, using the default BFD session parameters: feature bfd feature eigrp bfd interval 100 min_rx 100 multiplier 4 router eigrp Test2 bfd Additional References For additional information related to implementing BFD, see the following sections: • Related Documents, page 5-...
... Detection Send document comments to nexus7k-docfeedback@cisco.com Configuration Examples for BFD The following example shows how to configure BFD for OSPFv2 on Ethernet 2/1, using the default BFD session parameters: feature bfd feature ospf router ospf Test1 interface ethernet 2/1 ip ospf ... BFD for all EIGRP interfaces, using the default BFD session parameters: feature bfd feature eigrp bfd interval 100 min_rx 100 multiplier 4 router eigrp Test2 bfd Additional References For additional information related to implementing BFD, see the following sections: • Related Documents, page 5-...
Configuration Guide
Page 160
... trunk mode and Chapter 4, "Configuring Layer 3 Interfaces," for information on configuring Layer 2 ports in either access or trunk mode. See the Cisco Nexus 7000 Series NX-OS Layer 2 Switching Configuration Guide, Release 5.x, for informational purposes only; Layer 3 port-channel interfaces have subinterfaces. See ...setting is to be used by higher-level protocols. • Delay-Use this value, the Layer 3 port channel uses the router MAC of the first channel member to come up. Basic Settings You can configure the following basic settings for informational purposes only;...
... trunk mode and Chapter 4, "Configuring Layer 3 Interfaces," for information on configuring Layer 2 ports in either access or trunk mode. See the Cisco Nexus 7000 Series NX-OS Layer 2 Switching Configuration Guide, Release 5.x, for informational purposes only; Layer 3 port-channel interfaces have subinterfaces. See ...setting is to be used by higher-level protocols. • Delay-Use this value, the Layer 3 port channel uses the router MAC of the first channel member to come up. Basic Settings You can configure the following basic settings for informational purposes only;...
Configuration Guide
Page 173
... port-channel command to remove the port channel and delete the associated channel group. show port-channel summary Example: switch(config-router)# show port-channel summary (Optional) Displays information about the port channel. This example shows how to configure, and enters the... interface configuration mode. OL-23435-03 Cisco Nexus 7000 Series NX-OS Interfaces Configuration Guide, Release 5.x 6-17 copy running-config startup-config Example: switch(config)# copy running-...
... port-channel command to remove the port channel and delete the associated channel group. show port-channel summary Example: switch(config-router)# show port-channel summary (Optional) Displays information about the port channel. This example shows how to configure, and enters the... interface configuration mode. OL-23435-03 Cisco Nexus 7000 Series NX-OS Interfaces Configuration Guide, Release 5.x 6-17 copy running-config startup-config Example: switch(config)# copy running-...
Configuration Guide
Page 175
...fails if the port has a QoS policy mismatch with some incompatible configurations to join the channel. OL-23435-03 Cisco Nexus 7000 Series NX-OS Interfaces Configuration Guide, Release 5.x 6-19 This command creates the port channel associated with this...Chapter 6 Configuring Port Channels Configuring Port Channels Send document comments to nexus7k-docfeedback@cisco.com Step 6 Step 7 Step 8 Command Purpose channel-group channel-number [force] [mode {on . Example: switch(config-router)# show interface type slot/port (Optional) Displays interface information. This example shows ...
...fails if the port has a QoS policy mismatch with some incompatible configurations to join the channel. OL-23435-03 Cisco Nexus 7000 Series NX-OS Interfaces Configuration Guide, Release 5.x 6-19 This command creates the port channel associated with this...Chapter 6 Configuring Port Channels Configuring Port Channels Send document comments to nexus7k-docfeedback@cisco.com Step 6 Step 7 Step 8 Command Purpose channel-group channel-number [force] [mode {on . Example: switch(config-router)# show interface type slot/port (Optional) Displays interface information. This example shows ...