Since the Nexus V is a virtual distributed switch, the policies from the profiles are known and supported across Cisco vPath v2. Service chaining is supported, providing multiple virtual network services as part of a single traffic flow.
For example, you can simply specify the network policy and let vPath direct traffic:. Together, these features promote highly secure policy, application, and service delivery in the cloud. Cisco Nexus Virtual Services Appliance is a dedicated hardware platform for services critical for a virtualized infrastructure. The following virtual networking services are available for the Cisco Nexus Virtual Services Appliance family:.
The Cisco Nexus V InterCloud more securely connects your enterprise data center virtual networks to cloud service providers. There are no workarounds that address this vulnerability. If the device is not configured for EVPN, it is not vulnerable. Compiled Sun Mar by mcpre. No other Cisco products are currently known to be affected by this vulnerability.
Customers can use this tool to perform the following tasks: Initiate a search by choosing one or more releases from a drop-down menu or uploading a file from a local system for the tool to parse Enter the output of the show version command for the tool to parse Create a custom search by including all previously published Cisco Security Advisories, a specific advisory, or all advisories in the most recent bundled publication To determine whether a release is affected by any published Cisco Security Advisory, use the Cisco IOS Software Checker on Cisco.
Cisco Security Vulnerability Policy. Version Description Section Status Date 1. Product Attribute Set Final November 1.
Legal Disclaimer. Products Confirmed Not Vulnerable No other Cisco products are currently known to be affected by this vulnerability. Workarounds There are no workarounds that address this vulnerability. To configure a Layer 2 transport quality of service QoS policy, use the l2transport service-policy command in interface configuration mode. The following example shows how configure an L2 transport quality of service QoS policy:.
To enter L2VPN configuration mode, use the l2vpn command in global configuration mode. All L2VPN configuration can be deleted using the no l2vpn command. The following example shows how to enter L2VPN configuration mode:. Inserts or discards flow labels on transmit or receive. Specifies the flow label TLV type-length-value code.
The code value is L2vpn bridge group bridge-domain vfi autodiscovery bgp signaling submode. L2vpn bridge group bridge-domain vfi autodiscovery ldp signaling submode.
The code keyword was introduced. Use the load-balancing flow label code command to toggle between the sub-TLV identifiers—0x11 and 0x If there is a mismatch between two endpoints in the load-balancing flow label code, then the PWs will have a mismatched TLV value resulting in a load balancing failure.
The no form of the load-balancing flow label code command uses the flow label sub-TLV identifier 0x This example shows the output of the load-balancing flow-label command of the both keyword. To enable cross-connect logging, use the logging command in L2VPN configuration submode. The following example shows how to enable cross-connect logging:.
To enable non-stop routing logging, use the logging nsr command in L2VPN configuration submode. The following example shows how to enable non-stop routing logging:. To attach a traffic monitoring session as one of the segments for a cross connect, use the monitor-session command in point-to-point cross connect configuration mode.
To remove the association between a traffic mirroring session and a cross connect, use the no form of this command.
Before you can attach a traffic mirroring session to a cross connect, you must define it using the monitor-session global configuration command. Once the traffic mirroring session is defined, use the monitor-session point-to-point cross connect configuration command to attach this session as one of the segments for the cross connect. Once attached, all traffic replicated from the monitored interfaces in other words, interfaces that are associated with the monitor-session is replicated to the pseudowire that is attached to the other segment of the cross-connect.
The session-name argument should be different than any interface names currently used in the system. This example shows how to attach a traffic mirroring session as segment for the xconnect:.
To have MPLS assign a label dynamically, use the no form of this command. Configures a local pseudowire label. Range is 16 to Configures a remote pseudowire label. To configure a pseudowire for a cross-connect, use the neighbor command in p2p configuration submode. D pw-id value [ backup mpls pw-class ]. Configures the pseudowire ID and ID value. Range is 1 to The vccv disable keyword was added.
The pseudowire is identified by two keys: neighbor and pseudowire ID. There may be multiple pseudowires going to the same neighbor. It is not possible to configure only a neighbor. All L2VPN configurations can be deleted using the no l2vpn command.
This example shows a point-to-point cross-connect configuration including pseudowire configuration :. To configure non-stop routing, use the nsr command in L2VPN configuration submode. The following example shows how to configure non-stop routing:. To define the password and password encryption type for control channel authentication, use the password command in L2TP class configuration mode. To enter pseudowire class submode to define a pseudowire class template, use the pw-class command in L2VPN configuration submode.
To delete the pseudowire class, use the no form of this command. The following example shows how to define a simple pseudowire class template:. To configure L2TPv3 pseudowire encapsulation, use the pw-class encapsulation l2tpv3 command in L2VPN pseudowire class configuration mode.
Optional Configures L2TPv3 as the signaling protocol for the pseudowire class. To undo the configuration, use the no form of this command. Disables control word for MPLS encapsulation.
Disabled by default. Configures the preferred path tunnel settings. Configures LDP as the signaling protocol for this pseudowire class. Configures sequencing on receive or transmit. Enables or disables the VCCV verification type. The keywords control word disable and vccv none were replaced by the keywords control word and vccv verification-type none. The keyword load-balancing flow-label was introduced. This example shows how to define MPLS pseudowire encapsulation:.
To enable Pseudowire Grouping, use the pw-grouping command in L2vpn configuration submode. This example shows the sample output of pw-grouping configuration in L2VPN configuration submode:.
To enter p2p configuration submode to configure point-to-point cross-connects, use the p2p command in L2VPN xconnect mode. Optional Configures the name of the point-to-point cross- connect. The name of the point-to-point cross-connect string is a free format description string. The following example shows a point-to-point cross-connect configuration including pseudowire configuration :. To configure the receive window size for the L2TP server, use the receive-window command in L2TP class configuration mode.
Maximum number of packets that are received from a peer before back-off is applied. Default is The following example shows how to configure the receive window size for the L2TP server to 10 packets:. To configure retransmit retry and timeout values, use the retransmit command in L2TP class configuration mode.
Default is 2. Configures the maximum number of retransmissions before determining that peer router does not respond. Range is 5 to Configures the maximum and minimum retransmission interval in seconds for control packets. Range is 1 to 8. Maximum timeout default is 8 seconds. Minimum timeout default is 1 second.
To configure rollover times for a tunnel-template, use the rollover command in tunnel encapsulation l2tp configuration mode. Configures the periodic rollover time in seconds. Range is 60 to Configures the holddown time for old session cookie values. The following example shows how to configure rollover times for a tunnel-template:.
To display information about interface-lists, use the show generic-interface-list in EXEC mode. Optional Displays information about interface-lists for the specified location. Optional Displays information about interface-lists for the specified interface list name. Optional Displays retry-list information. Optional Displays Standby node specific information. The following example displays output for the show generic-interface-list command:. The following example displays output for the show generic-interface-list retry private command:.
The following example displays output for the show generic-interface-list standby command:. The following example shows sample output for the show l2vtp session class command:. This table describes the significant fields shown in the display. Shows the L2TP class name and the manner of its creation. For example, manually configured class. Optional Configures the session counter identifier.
Optional Configures the local and remote names for a session counter. The following example shows sample output for the show l2tp counters forwarding session command:. Number of packets input in the session. Number of packets output in the session. Optional Displays summary output for a session. Optional Displays attachment circuit information for a session. Optional Displays detailed output for a session. Optional Displays interworking information for a session.
Optional Displays data packet sequencing information for a session. Optional Displays control plane state information for a session. Configures the local tunnel ID. Range is 0 to The following sample output is from the show l2tp session brief command:. The IP address of the other end of the session. The Virtual Circuit ID of the session. This is the same value of the pseudowire ID for l2vpn. The following sample output is from the show l2tp session detail command:.
Displays detailed output for L2TP tunnels. Displays summary information for the tunnel. Displays transport information IP for each selected control channel. Displays local control channel identifiers. Displays the local and remote names of a control channel. The following sample output is from the show l2tp tunnel brief command:. The following sample output is from the show l2tp tunnel detail command:.
The following example displays output for the show l2vpn command. The output provides an overview of the state of the globally configured features. The following example shows sample output for the show l2vpn collaborators command:. The following example displays output for the show l2vpn database ac command:.
The following example displays output for the show l2vpn database node command:. Displays the cross-connect related information. Displays bridge domain related forwarding information.
Displays L2TPv3 related forwarding information. Displays messages exchanged with collaborators. Displays multi-spanning tree related forwarding information. To use commands of this module, you must be in a user group associated with a task group that includes appropriate task IDs. If the user group assignment is preventing you from using any command, contact your AAA administrator for assistance.
The following sample output is from the show l2vpn forwarding bridge detail location command for IOS-XR releases 5. The following sample output is from the show l2vpn forwarding bridge detail location command for IOS-XR 5. The following sample outputs shows the backup pseudowire information:.
The following sample outputs displays the SPAN segment information of the xconnect:. The following sample output is from the show l2vpn forwarding command:.
Range is Displays L2TPv3-related forwarding information for the specified location. The following example shows sample output for the show l2vpn forwarding l2tp command:. To display the status of l2vpn non-stop routing, use the show l2vpn nsr command in EXEC mode. Optional Displays non-stop routing information for the specified location.
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