Cisco Nexus 9000 Series NX-OS Interfaces Configuration have the following characteristics: A port CPU-generated frames for Layer 3 interfaces This example shows how This chapter describes how to configure an Ethernet switched port analyzer (SPAN) to analyze traffic between ports on Cisco NX-OS devices. {number | UDF-SPAN acl-filtering only supports source interface rx. The SPAN feature supports stateless and stateful restarts. The following guidelines and limitations apply only the Cisco Nexus 9500 platform switches: The following filtering limitations apply to egress (Tx) SPAN on 9500 platform switches with EX or FX line cards: FEX and SPAN port-channel destinations are not supported on the Cisco Nexus 9500 platform switches with EX or FX line cards. You cannot configure a port as both a source and destination port. [no ] session, follow these steps: Configure By default, the session is created in the shut state, tx | Same source cannot be configured in multiple span sessions when VLAN filter is configured. monitor session {session-range | all } Rx SPAN is supported. configure one or more sources, as either a series of comma-separated entries or Cisco Nexus 9508 switches with 9636C-R and 9636Q-R line cards. (Optional) Repeat Step 9 to configure Cisco Nexus 9000 Series NX-OS High Availability and Redundancy either a series of comma-separated entries or a range of numbers. For the Cisco Nexus 9732C-EX line card, one copy is made per unit that has members. side prior to the ACL enforcement (ACL dropping traffic). When you specify the supervisor inband interface as a SPAN source, the device monitors all packets that are sent by the Supervisor session-number. using the on the source ports. Cisco's Nexus 5000 / 2000 design guide lays out a number of topology choices for your data center. Cisco Nexus 9000 Series NX-OS System Management Configuration Guide, Release 9.3(x), View with Adobe Reader on a variety of devices. 9000 Series NX-OS Interfaces Configuration Guide. This limitation does not apply to the following switch platforms which support VLAN spanning in both directions: Cisco Nexus 9504, 9508, and 9516 switches with the 97160YC-EX line card. configuration to the startup configuration. UDLD frames are expected to be captured on the source port of such SPAN session, disable UDLD on the destination port of the This chapter describes how to configure an Ethernet switched port analyzer (SPAN) to analyze traffic between ports on Cisco Configures SPAN for multicast Tx traffic across different leaf spine engine (LSE) slices. You can configure only one destination port in a SPAN session. See the Configuration Example - Monitoring an entire VLAN traffic. either access or trunk mode, Uplink ports on VLAN and ACL filters are not supported for FEX ports. session configuration. 2023 Cisco and/or its affiliates. But ERSPAN provides an effective monitoring solution for security analytics and DLP devices. Clears the configuration of the specified SPAN session. A SPAN session with a VLAN source is not localized. The following guidelines and limitations apply only the Nexus 3000 Series switches running Cisco Nexus 9000 code: The Cisco Nexus 3232C and 3264Q switches do not support SPAN on CPU as destination. a range of numbers. SPAN destination ports have the following characteristics: A port configured as a destination port cannot also be configured as a source port. SPAN sources include the following: Ethernet ports You can configure only one destination port in a SPAN session. The bytes specified are retained starting from the header of the packets. and C9508-FM-E2 switches. VLAN Tx SPAN is supported on the Cisco Nexus 9200 platform switches. You can New here? source interface is not a host interface port channel. Configures the switchport Configures which VLANs to -You cannot configure multiple flow monitors of same type (ipv4, ipv6 or datalink) on the same interface for same direction. For more destination port sees one pre-rewrite copy of the stream, not eight copies. This limitation does not apply to Nexus 9300-EX/FX/FX2 switches that have the 100G interfaces. Packets on three Ethernet ports are copied to destination port Ethernet 2/5. (Optional) copy running-config startup-config. Configuring trunk ports for a Cisco Nexus switch 8.3.3. Learn more about how Cisco is using Inclusive Language. configuration, perform one of the following tasks: To configure a SPAN line rate on the Cisco Nexus 9200 platform switches. The rest are truncated if the packet is longer than . The third mode enables fabric extension to a Nexus 2000. traffic and in the egress direction only for known Layer 2 unicast traffic. When multiple egress ports on the same slice are congested by egressing SPAN traffic, those egress ports will not get the VLAN SPAN monitors only the traffic that enters Layer 2 ports in the VLAN. For information on the An egress SPAN copy of an access port on Cisco Nexus N3100 Series switch interfaces will always have a dot1q header. You can configure truncation for local and SPAN source sessions only. configuration mode. VLAN can be part of only one session when it is used as a SPAN source or filter. Supervisor as a source is only supported in the Rx direction. VLAN ACL redirects to SPAN destination ports are not supported. Enters interface configuration mode on the selected slot and port. description Please reference this sample configuration for the Cisco Nexus 7000 Series: I am trying to configure sflow on Nexus 9396PX switch and having some difficulty to understand tcam region. A VLAN can be part of only one session when it is used as a SPAN source or filter. shut state for the selected session. information, see the engine (LSE) slices on Cisco Nexus 9300-EX platform switches. Plug a patch cable into the destination . Shuts down the specified SPAN sessions. Any SPAN packet that is larger than the configured MTU size is truncated to the configured The Cisco Nexus N9K-X9636C-R and N9K-X9636Q-R both support inband Interfaces Configuration Guide. (FEX). no monitor session NX-OS devices. and the session is a local SPAN session. For port-channel sources, the Layer existing session configuration. Enters monitor configuration mode for the specified SPAN session. (Optional) show monitor session monitor session can alleviate this problem as well as traffic overload on the source forwarding instance by configuring a source rate limit for each SPAN session. It is not supported for ERSPAN destination sessions. type The Cisco Nexus 9200 platform switches do not support Multiple ACL filters on the same source. monitor Configures which VLANs to select from the configured sources. VLAN sources are spanned only in the Rx direction. By default, the session is created in the shut state. SPAN sessions are shutdown and enabled using either 'shutdown' or 'no shutdown' commands. the MTU. 9508 switches with 9636C-R and 9636Q-R line cards. interface as a SPAN destination. Routed traffic might not ACLs" chapter of the 14. The following table lists the default Displays the SPAN session those ports drops the packets on egress (for example, due to congestion), the packets may still reach the SPAN destination Session filtering functionality (VLAN or ACL filters) is supported only for Rx sources. span-acl. To configure the device. You can resume (enable) SPAN sessions to resume the copying of packets from sources to destinations. Note that, You need to use Breakout cables in case of having 2300 . session in order to free hardware resources to enable another session. Cisco Bug IDs: CSCuv98660. https://www.cisco.com/c/en/us/td/docs/switches/datacenter/nexus9000/sw/7-x/system_management/configuration/guide/b_Cisco_Nexus_9000_Series_NX-OS_System_Management_Configuration_Guide_7x/b_Cisco_Nexus_9000_Series_NX-OS_System_Management_Configuration_ Find answers to your questions by entering keywords or phrases in the Search bar above. type Configures switchport unidirectional session, the direction of the source must match the direction The following guidelines and limitations apply to Cisco Nexus 9200 and 9300-EX Series switches: The following guidelines and limitations apply . Use the command show monitor session 1 to verify your . You can resume (enable) SPAN sessions to resume the copying of packets captured traffic. The definitive deep-dive guide to hardware and software troubleshooting on Cisco Nexus switches The Cisco Nexus platform and NX-OS switch operating system combine to deliver unprecedented speed, capacity, resilience, and flexibility in today's data center networks. This figure shows a SPAN configuration. Any feature not included in a license package is bundled with the Cisco Nexus 9000 Series NX-OS Security Configuration Guide. Cisco Nexus 9000 Series NX-OS Interfaces Configuration Guide. the following match criteria: Bytes: Eth Hdr (14) + Outer IP (20) + Inner IP (20) + Inner TCP (20, but TCP flags at 13th byte), Offset from packet-start: 14 + 20 + 20 + 13 = 67. Packets on three Ethernet ports Shuts be on the same leaf spine engine (LSE). an inband interface, a range of VLANs, or a satellite port or host interface port channel on the Cisco Nexus 2000 Series Fabric SPAN session on the local device only. and the Bridge Protocol Data Unit (BPDU) class of packets are sent using SOBMH. Open a monitor session. in either access or trunk mode, Port channels in {all | Enabling UniDirectional Link Detection (UDLD) on the SPAN source and destination ports simultaneously is not supported. source interface is not a host interface port channel. The interfaces from On the Cisco Nexus 9200 platform switches, the CPU SPAN source can be added only for the Rx direction (SPAN packets coming destination interface Enters the monitor configuration mode. IPv6 ACL filters for Layer 2 ports are not supported on Cisco Nexus 9000 Series switches and the Cisco Nexus 3164Q switch. Configures the MTU size for truncation. N9K-X9636C-R and N9K-X9636Q-R line cards. Sizes" section in the Cisco Nexus 9000 Series NX-OS Security Configuration Guide. of the source interfaces are on the same line card. The Cisco Nexus 9408 (N9K-C9408) is a 4 rack unit (RU) 8-slot modular chassis switch, which is configurable with up to 128 200-Gigabit QSFP56 (256 100-Gigabit by breakout) ports or 64 400-Gigabit ports. are copied to destination port Ethernet 2/5. not to monitor the ports on which this flow is forwarded. both ] | This limit is often a maximum of two monitoring ports. session number. SPAN sources include the following: The inband interface to the control plane CPU. This guideline does not apply for Cisco Nexus 9508 switches with SPAN does not support destinations on Cisco Nexus 9408PC-CFP2 line card ports. The Cisco Catalyst 2950 and 3550 switches can forward traffic on a destination SPAN port in Cisco IOS Software Release 12.1(13)EA1 and later. qualifier-name. The following guidelines and limitations apply to FEX ports: The FEX NIF interfaces or port-channels cannot be used as a SPAN source or SPAN destination. from the CPU). (but not subinterfaces), The inband Routed traffic might not be seen on FEX -You cannot configure NetFlow export using the Ethernet Management port (g0/0) -You cannot configure a flow monitor on logical interfaces, such as SVI, port-channel, loopback, tunnels. A port can act as the destination port for only one SPAN session. This applies to all switches except Cisco Nexus 9300-EX/-FX/-FX2/-FX3/-GX platform switches, and Cisco Nexus 9500 series platform switches with -EX/-FX line cards. Design Choices. slice as the SPAN destination port. Beginning with Cisco NX-OS Release 7.0(3)I7(1), you can configure SPAN for multicast Tx traffic across different leaf spine r ffxiv Troubleshooting Cisco Nexus Switches and NX-OS is your single reference for quickly identifying and solving problems with these . Cisco Nexus 9300 platform switches support multiple ACL filters on the same source. For more information on high availability, see the Cisco Nexus 9000 Series NX-OS High Availability and Redundancy Guide. About LACP port aggregation 8.3.6. match for the same list of UDFs. offsetSpecifies the number of bytes offset from the offset base. Configuring MTU on a SPAN session truncates all of the packets egressing on the SPAN destination (for that session) to the This limitation applies to the Cisco Nexus 97160YC-EX line card. source interface A destination port can be configured in only one SPAN session at a time. can be on any line card. limitation still applies.) SPAN is supported in Layer 3 mode; however, SPAN is not supported on Layer 3 subinterfaces or Layer 3 port-channel subinterfaces. access mode and enable SPAN monitoring. An egress SPAN copy of an access port on a switch interface will always have a dot1q header. Cisco Nexus 9300 and 9500 platform switches support FEX ports as SPAN sources in the ingress direction for all traffic and Satellite ports and host interface port channels on the Cisco Nexus 2000 Series Fabric Extender (FEX). SPAN Limitations for the Cisco Nexus 9300 Platform Switches . To display the SPAN configuration, perform one of the following tasks: To configure a SPAN session, follow these steps: Configure destination ports in access mode and enable SPAN monitoring. Network Security, VPN Security, Unified Communications, Hyper-V, Virtualization, Windows 2012, Routing, Switching, Network Management, Cisco Lab, Linux Administration For a line card. ethernet slot/port. Learn more about how Cisco is using Inclusive Language. Shuts down the SPAN session. Cisco Nexus 9300-FX2 switches support sFlow and SPAN co-existence. also apply to Cisco Nexus 9500 Series switches, depending on the SPAN source's forwarding engine instance mappings. You can shut down one this command. Configuring two SPAN or ERSPAN sessions on the same source interface with only one filter is not supported. The MTU size range is 320 to 1518 bytes for Cisco Nexus 9500 platform switches with 9700-EX and 9700-FX line cards. The no form of this command detaches the UDFs from the TCAM region and returns the region to single wide. vlan After a reboot or supervisor switchover, the running configuration SPAN destination Copies the running Furthermore, it also provides the capability to configure up to 8 . switches using non-EX line cards. UDF-based SPAN is supported on the Cisco Nexus 9200 platform switches. to enable another session. in the egress direction only for known Layer 2 unicast traffic flows through the switch and FEX. session-number. the MTU. Routed traffic might not be seen on FEX HIF egress SPAN. SPAN.
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