[no] interface interface-name
config>router
Supported on all 7210 SAS platforms as described in this document
This command creates a system or a loopback IP routing interface. When created, attributes like IP address, or system can be associated with the IP interface.
Interface names are case-sensitive and must be unique within the group of IP interfaces defined for config router interface. Interface names must not be in the dotted decimal notation of an IP address.; for example, the name ‟1.1.1.1” is not allowed, but ‟int-1.1.1.1” is allowed. Show commands for router interfaces use either the interface names or the IP addresses. Ambiguity can exist if an IP address is used as an IP address and an interface name.
When a new name is entered, a new logical router interface is created. When an existing interface name is entered, the user enters the router interface context for editing and configuration.
Although not a keyword, the ip-int-name ‟system” is associated with the network entity, not a specific interface. The system interface is also referred to as the loopback address.
The no form of this command removes the IP interface and all the associated configurations. The interface must be administratively shut down before issuing the no interface command.
Specifies the name of the IP interface. Interface names must be unique within the group of defined IP interfaces for config router interface commands. An interface name cannot be in the form of an IP address. If the string contains special characters (#, $, spaces, and so on), the entire string must be enclosed within double quotes.
If the interface-name already exists, the context is changed to maintain that IP interface. If ip-int-name already exists within another service ID or is an IP interface defined within the config router commands, an error occurs and the context is not changed to that IP interface. If interface-name does not exist, the interface is created and the context is changed to that interface for further command processing.
address {ip-address/mask | ip-address netmask} [broadcast {all-ones | host-ones}]
no address
config>router>interface
Supported on all 7210 SAS platforms as described in this document
This command assigns an IP address to a system IP interface. Only one IP address can be associated with an IP interface.
The IP address for the interface can be entered in either CIDR (Classless Inter-Domain Routing) or traditional dotted decimal notation. Show commands display CIDR notation and are stored in configuration files.
By default, no IP address or subnet association exists on an IP interface until it is explicitly created.
If a new address is entered while another address is still active, the new address is rejected.
The no form of this command removes the IP address assignment from the IP interface. The no form of this command can only be performed when the IP interface is administratively shut down.
Specifies the IP address of the IP interface. The ip-address portion of the address command specifies the IP host address that is used by the IP interface within the subnet. This address must be unique within the subnet and specified in dotted decimal notation.
Specifies a parameter delimiter that separates the ip-address portion of the IP address from the mask that defines the scope of the local subnet. No spaces are allowed between the ip-address, the ‟/” and the mask-length parameter. If a forward slash does not immediately follow the ip-address, a dotted decimal mask must follow the prefix.
Specifies the subnet mask length when the IP prefix is specified in CIDR notation. When the IP prefix is specified in CIDR notation, a forward slash (/) separates the ip-address from the mask parameter. The mask length parameter indicates the number of bits used for the network portion of the IP address; the remainder of the IP address is used to determine the host portion of the IP address.
Specifies the subnet mask in dotted decimal notation.
Specifies an optional parameter that overrides the default broadcast address used by the IP interface when sourcing IP broadcasts on the IP interface. If no broadcast format is specified for the IP address, the default value is host-ones, which indicates a subnet broadcast address. Use this parameter to change the broadcast address to all-ones or revert back to a broadcast address of host-ones.
The all-ones keyword following the broadcast parameter specifies that the broadcast address used by the IP interface for this IP address will be 255.255.255.255, also known as the local broadcast.
The host-ones keyword following the broadcast parameter specifies that the broadcast address used by the IP interface for this IP address will be the subnet broadcast address. This is an IP address that corresponds to the local subnet described by the ip-address and the mask-length or mask with all the host bits set to binary 1. This is the default broadcast address used by an IP interface.
The broadcast parameter within the address command does not have a negate feature, which is usually used to revert a parameter to the default value. To change the broadcast type to host-ones after being changed to all-ones, the address command must be executed with the broadcast parameter defined.
The broadcast format on an IP interface can be specified when the IP address is assigned or changed.
This parameter does not affect the type of broadcasts that can be received by the IP interface. A host sending either the local broadcast (all-ones) or the valid subnet broadcast address (host-ones) will be received by the IP interface.
arp-timeout seconds
no arp-timeout
config>router>interface
7210 SAS-K 2F6C4T and 7210 SAS-K 3SFP+ 8C
This command configures the minimum time, in seconds, an ARP entry learned on the IP interface is stored in the ARP table. ARP entries are automatically refreshed when an ARP request or gratuitous ARP is seen from an IP host. Otherwise, the ARP entry is aged from the ARP table. If the arp-timeout value is set to 0 seconds, ARP aging is disabled.
The no form of this command reverts to the default value.
14400
The minimum number of seconds a learned ARP entry is stored in the ARP table, expressed as a decimal integer. A value of 0 specifies that the timer is inoperative and learned ARP entries are not aged.
bfd transmit-interval [receive receive-interval] [multiplier multiplier] [echo-receive echo-interval] [type iom-hw]
no bfd
config>router>interface
7210 SAS-K 2F6C4T and 7210 SAS-K 3SFP+ 8C
This command specifies the bidirectional forwarding detection (BFD) parameters for the associated IP interface. If no parameters are defined, the default values are used.
The multiplier specifies the number of consecutive BFD messages that must be missed from the peer before the BFD session state is changed to down and the upper level protocols (OSPF, IS-IS) are notified of the fault.
The no form of this command removes BFD from the router interface, regardless of the RSVP.
no bfd
Specifies the transmit interval, in milliseconds, for the BFD session.
Specifies the receive interval, in milliseconds, for the BFD session.
Specifies the multiplier for the BFD session.
Specifies the minimum echo receive interval, in milliseconds, for the session.
Specifies that IOM-based hardware BFD sessions are used. The user must explicitly set this keyword when configuring a BFD on an IP interface that is configured on a port.
delayed-enable seconds
no delayed-enable
config>router>interface
7210 SAS-K 2F6C4T and 7210 SAS-K 3SFP+ 8C
This command creates a delay to make the interface operational by the specified number of seconds
The value is used whenever the system attempts to bring the interface operationally up.
Specifies a delay, in seconds, to make the interface operational.
local-proxy-arp
no local-proxy-arp
config>router>interface
7210 SAS-K 2F6C4T and 7210 SAS-K 3SFP+ 8C
This command enables local proxy ARP on the interface.
The no form of this command disables local proxy ARP on the interface.
no local-proxy-arp
ldp-sync-timer seconds
no ldp-sync-timer
config>router>interface
7210 SAS-K 2F6C4T and 7210 SAS-K 3SFP+ 8C
This command configures the IGP-LDP synchronization timer. This timer enables synchronization of IGP and LDP, and synchronization of static routes and LDP. This command is not supported on RIP interfaces.
When a link is restored after a failure, IGP sets the link cost to infinity and advertises it; if it’s a static route, the route activation is delayed until this timer expires. The supported IGPs are OSPF and IS-IS. The value advertised in OSPF is 0xFFFF (65535). The value advertised in IS-IS regular metric is 0x3F (63) and in IS-IS wide-metric is 0xFFFFFE (16777214).
If an interface belongs to both IS-IS and OSPF, a physical failure causes both IGPs to advertise infinite metric and to follow the IGP-LDP synchronization procedures. If only one IGP bounces on this interface or on the system, only the affected IGP advertises the infinite metric and follows the IGP-LDP synchronization procedures.
After IGP advertises the link cost, the LDP hello adjacency is brought up with the neighbor. IGP starts the LDP synchronization timer when the LDP session to the neighbor becomes operationally up over the interface. This synchronization timer allows time for the label-FEC bindings to be exchanged.
When the LDP synchronization timer expires, the link cost is restored and is readvertised. IGP announces a new best next-hop and LDP uses it if the label binding for the neighbor’s FEC is available.
The preceding behavior is similar for static routes. If the static route is enabled for ldp-sync (see static-route), the route is not enabled immediately after the interface to the next hop comes up. Routes are suppressed until the LDP adjacency with the neighbor comes up and the synchronization timer expires. The timer does not start until the LDP adjacency with the neighbor node is fully established.
If the user changes the cost of an interface, the new value is advertised at the next flooding of link attributes by IGP. However, if the LDP synchronization timer is still running, the new cost value is only advertised after the timer expires. Also, if the currently advertised cost is different, the new cost value is advertised after the user executes any of the following commands:
tools>perform>router>ospf>ldp-sync-exit
tools>perform>router>isis>ldp-sync-exit
config>router>interface>no ldp-sync-timer
config>router>ospf>disable-ldp-sync
config>router>isis>disable-ldp-sync
See the 7210 SAS-D, Dxp, K 2F1C2T, K 2F6C4T, K 3SFP+ 8C OAM and Diagnostics Guidefor the tools commands and to the 7210 SAS-D, Dxp, K 2F1C2T Routing Protocols Guide and the 7210 SAS-K 2F6C4T, K 3SFP+ 8C Routing Protocols Guide for the OSPF and IS-IS commands.
If the user changes the value of the LDP synchronization timer parameter, the new value takes effect at the next synchronization event. That is, if the timer is still running, it continues using the previous value.
If parallel links exist to the same neighbor, the bindings and services should remain up as long as there is one interface that is up. However, the user-configured LDP synchronization timer still applies on the failed then restored interface. In this case, the 7210 SAS only considers this interface for forwarding after IGP re-advertises its actual cost value.
The LDP Sync Timer State is not always synchronized across to the standby CSM, so after an activity switch the timer state may not be same as it was on the previously active CSM.
If the ldp-sync-timer value is configured on the interface but LDP is not running on the interface, the configuration causes the IGP route cost to increase to the maximum value.
The no form of this command disables IGP-LDP synchronization and deletes the configuration.
no ldp-sync-timer
Specifies the time interval for the IGP-LDP synchronization timer in seconds
[no] loopback
config>router>interface
Supported on all 7210 SAS platforms as described in this document
This command configures the interface as a loopback interface.
mac ieee-mac-addr
no mac
config>router>interface
7210 SAS-K 2F6C4T and 7210 SAS-K 3SFP+ 8C
This command assigns a specific MAC address to an IP interface. Only one MAC address can be assigned to an IP interface. When multiple mac commands are entered, the last command overwrites the previous command.
The no form of this command reverts the MAC address of the IP interface to the default value.
IP interface has a system-assigned MAC address
Specifies the 48-bit MAC address for the IP interface in the form aa:bb:cc:dd:ee:ff or aa-bb-cc-dd-ee-ff where aa, bb, cc, dd, ee and ff are hexadecimal numbers. Allowed values are any non-broadcast, non-multicast MAC and non-IEEE reserved MAC addresses.
[no] ntp-broadcast
config>router>interface
7210 SAS-K 2F6C4T and 7210 SAS-K 3SFP+ 8C
This command enables SNTP broadcasts received on the IP interface. This parameter is only valid when the SNTP broadcast-client global parameter is configured.
The no form of this command disables SNTP broadcast received on the IP interface.
no ntp-broadcast
port port-name
no port
config>router>interface
7210 SAS-K 2F6C4T and 7210 SAS-K 3SFP+ 8C
This command creates an association with a logical IP interface and a physical port.
An interface can also be associated with the system (loopback address).
The command returns an error if the interface is already associated with another port or the system. In this case, the association must be deleted before the command is reattempted.
If the card in the slot has MDAs, port-id is in the slot_number/MDA_number/port_number format; for example, 1/1/3 specifies port 3 of the MDA installed in MDA slot 1 on the card installed in chassis slot 1.
The encapsulation type is an property of a Ethernet network port. The port in this context can be tagged with either IEEE 802.1Q (referred to as dot1q) encapsulation or null encapsulation. Dot1q encapsulation supports multiple logical IP interfaces on a specific network port and Null encapsulation supports a single IP interface on the network port.
The no form of this command deletes the association with the port. The no form of this command can only be performed when the interface is administratively down.
Specifies the physical port identifier to associate with the IP interface.
[no] proxy-arp-policy policy-name [policy-name...(up to 5 max)]
config>router>interface
7210 SAS-K 2F6C4T and 7210 SAS-K 3SFP+ 8C
This command enables and configures proxy ARP on the interface and specifies an existing policy statement to analyze match and action criteria that controls the flow of routing information to and from a specific protocol, set of protocols, or a particular neighbor. The policy-name is configured in the config>router>policy-options context.
Use proxy ARP so the 7210 SAS responds to ARP requests on behalf of another device. Static ARP is used when a 7210 SAS needs to know about a device on an interface that cannot or does not respond to ARP requests. Therefore, the 7210 SAS configuration can state that if it has a packet that has a specific IP address to send it to the corresponding ARP address.
no proxy-arp-policy
Specifies the export route policy name. Allowed values are any string up to 32 characters composed of printable, 7-bit ASCII characters. If the string contains special characters (#, $, spaces, and so on), the entire string must be enclosed within double quotes. The specified policy names must already be defined.
[no] remote-proxy-arp
config>router>interface
7210 SAS-K 2F6C4T and 7210 SAS-K 3SFP+ 8C
This command enables remote proxy ARP on the interface.
no remote-proxy-arp
static-arp ip-address ieee-address
no static-arp ip-address
static-arp ieee-address unnumbered
no static-arp unnumbered
config>router>interface
7210 SAS-K 2F6C4T and 7210 SAS-K 3SFP+ 8C
This command configures a static Address Resolution Protocol (ARP) entry associating an IP address or an unnumbered address with a MAC address for the core router instance. This static ARP appears in the core routing ARP table. A static ARP can only be configured if it exists on the network attached to the IP interface.
If an entry for a particular IP address already exists and a new MAC address is configured for the IP address, the existing MAC address is replaced by the new MAC address.
Static ARP is used when a 7210 SAS router needs to know about a device on an interface that cannot or does not respond to ARP requests. Therefore, the 7210 SAS configuration can state that if it has a packet that has a specific IP address to send the packet to the corresponding ARP address.
The no form of this command removes a static ARP entry.
no static-arp
Specifies the IP address for the static ARP in IP address dotted decimal notation.
Specifies the 48-bit MAC address for the static ARP in the form aa:bb:cc:dd:ee:ff or aa-bb-cc-dd-ee-ff where aa, bb, cc, dd, ee and ff are hexadecimal numbers. Allowed values are any non-broadcast, non-multicast MAC and non-IEEE reserved MAC addresses.
Specifies the static ARP MAC is for an unnumbered interface. Unnumbered interfaces support dynamic ARP. When this command is configured, it overrides any dynamic ARP.
unnumbered [ip-int-name | ip-address]
no unnumbered
config>router>interface
7210 SAS-K 2F6C4T and 7210 SAS-K 3SFP+ 8C
This command sets an IP interface as an unnumbered interface and specifies the IP address to be used for the interface.
To conserve IP addresses, unnumbered interfaces can be configured. The address used when generating packets on this interface is the ip-address parameter configured.
An error message is generated when an unnumbered interface is configured and an IP address already exists on this interface.
The no form of this command removes the IP address from the interface, effectively removing the unnumbered property. The interface must be shutdown before the no unnumbered command is issued to delete the IP address from the interface.
no unnumbered
Specifies the IP interface name or IP address with which to associate the unnumbered IP interface, in dotted decimal notation. The configured IP address must exist on this node. Nokia recommends to use the system IP address as it is not associated with a particular interface and is therefore always reachable. The system IP address is the default if ip-int-name or ip-address is not configured.
urpf-check
config>router
7210 SAS-K 3SFP+ 8Cs
This command enables the Unicast RPF check feature on this router.
[no] ignore-default
config>router>urpf-check
config>router>urpf-check>ipv6>ignore-default
7210 SAS-K 3SFP+ 8C
This command configures the Unicast RPF check feature (if enabled) to ignore default routes for purposes of determining the validity of incoming packets.
The no form of this command considers the default route to be eligible when performing a Unicast RPF check.
no ignore-default