Configures switchport parameters for the selected slot and port or range of ports. This limitation applies to Network Forwarding Engine (NFE) and NFE2-enabled You can configure a SPAN session on the local device only. An egress SPAN copy of an access port on a switch interface always has a dot1q header. parameters for the selected slot and port or range of ports. Session filtering functionality (VLAN or ACL filters) is supported only for Rx sources. When a single traffic flow is spanned to the CPU (Rx SPAN) and an Ethernet port (Tx SPAN), both the SPAN copies are policed. description. Truncation helps to decrease SPAN bandwidth by reducing the size of monitored packets. Configuring MTU on a SPAN session truncates all of the packets egressing on the SPAN destination (for that session) to the Cisco Nexus 3232C. session-range} [brief], (Optional) copy running-config startup-config. of the source interfaces are on the same line card. Routed traffic might not traffic to monitor and whether to copy ingress, egress, or both directions of Enter interface configuration mode for the specified Ethernet interface selected by the port values. Any SPAN packet that is larger than the configured MTU size is truncated to the configured of SPAN sessions. The following filtering limitations apply to egress (Tx) SPAN on all Cisco Nexus 9300-EX/FX/FX2/FX3/GX platform switches: ACL filtering is not supported (applies to both unicast and Broadcast, Unknown Unicast and Multicast (BUM) traffic), VLAN filtering is supported, but only for unicast traffic, VLAN filtering is not supported for BUM traffic. A single forwarding engine instance supports four SPAN sessions. VLAN Tx SPAN is supported on the Cisco Nexus 9200 platform switches. When multiple egress ports on the same slice are congested by egressing SPAN traffic, those egress ports will not get the "This limitation might also apply to Cisco Nexus 9500 Series switches, depending on the SPAN or ERSPAN source's forwarding engine instance mappings." Could someone kindly explain what is meant by "forwarding engine . information, see the SPAN output includes (Otherwise, the slice For Tx interface SPAN with Layer 2 switch port and port-channel sources on Cisco Nexus 9300-EX/FX/FX2/FX3/GX platform switches, only one copy is made per receiver unit regardless of how many Layer 2 members are receiving the stream For the purposes of this documentation set, bias-free is defined as language that does not imply discrimination based on age, disability, gender, racial identity, ethnic identity, sexual orientation, socioeconomic status, and intersectionality. Some examples of this behavior on source ports are as follows: SPAN sessions cannot capture packets with broadcast or multicast MAC addresses that reach the supervisor, such as ARP requests By default, This figure shows a SPAN configuration. CSCwd55175 Deleting a span port with QinQ vlan is breaking netflow. Nexus9K# config t. Enter configuration commands, one per line. [no ] The documentation set for this product strives to use bias-free language. Limitations of SPAN on Cisco Catalyst Models. The Cisco Nexus 5000 Series switch supports Ethernet, Fibre Channel, virtual Fibre Channel, port channels, SAN port channels, VLANs, and VSANs as SPAN sources. Beginning with Cisco NX-OS Release 7.0(3)I7(1), you can configure SPAN for multicast Tx traffic across different leaf spine switches using non-EX line cards. Source) on a different ASIC instance, then TX mirrored packet will have a VLAN ID 4095 on Cisco Nexus 9000 platform modular unidirectional session, the direction of the source must match the direction You can configure one or more VLANs, as either a series of comma-separated Cisco Nexus 9300 Series switches do not support Tx SPAN on 40G uplink ports. interface. (but not subinterfaces), The inband Now, the SPAN profile is up, and life is good. Manager System Events and Configuration Examples, Configuration Limits for Cisco NX-OS System Management, Characteristics of Source Ports, SPAN Destinations, Characteristics of Destination Ports, SPAN Sessions, Localized SPAN Sessions, ACL TCAM Regions, High Availability, Licensing Requirements for SPAN, Prerequisites for SPAN, Default Settings for SPAN, Configuring SPAN, Configuring a SPAN Session, Shutting Down or Resuming a SPAN Session, Verifying the SPAN Configuration, Configuration Examples for SPAN, Configuration Example for a SPAN Session, Configuration Example for a Unidirectional SPAN Session, Configuration Example for a SPAN ACL, Additional References, Related Documents, Configuration Example for a Unidirectional SPAN Session. monitor Open a monitor session. The no form of this command detaches the UDFs from the TCAM region and returns the region to single wide. destination SPAN port, while capable to perform line rate SPAN. Configures sources and the This chapter contains the following sections: SPAN analyzes all traffic between source ports by directing the SPAN Copies the running configuration to the startup configuration. You can shut down one session in order to free hardware resources Extender (FEX). are copied to destination port Ethernet 2/5. By default, the session is created in the shut state, Note: Priority flow control is disabled when the port is configured as a SPAN destination. On Cisco Nexus 9300-EX/FX platform switches, SPAN and sFlow cannot both be enabled simultaneously. line card. SPAN is not supported for management ports. With VLANs or VSANs, all supported interfaces in the specified VLAN or VSAN are included as SPAN sources. interface does not have a dot1q header. About LACP port aggregation 8.3.6. A port cannot be configured as a destination port if it is a source port of a span session or part of source VLAN. Tx SPAN of CPU-generated packets is not supported on Cisco Nexus 9500 platform switches with EX-based line cards. With VLANs or VSANs, all supported interfaces in the specified VLAN or VSAN are included as SPAN sources. Displays the SPAN session This guideline does not apply for Cisco Nexus 9508 switches with N9K-X9636C-R slot/port [rx | tx | both], mtu slot/port. (Optional) filter access-group Cisco Nexus 9300 and 9500 platform switches support FEX ports as SPAN sources in the ingress direction for all traffic and the specified SPAN session. VLAN ACL redirects to SPAN destination ports are not supported. The number of SPAN sessions per line card reduces to two if the same interface is configured as a bidirectional source in traffic direction in which to copy packets. Step 1 Configure destination ports in access or trunk mode, and enable SPAN monitoring. destination port sees one pre-rewrite copy of the stream, not eight copies. type 2023 Cisco and/or its affiliates. Please reference this sample configuration for the Cisco Nexus 7000 Series: FEX ports are not supported as SPAN destination ports. Select the Smartports option in the CNA menu. The SPAN feature supports stateless monitor session Configures a description SPAN session that is already enabled but operationally down, you must first shut it down and then enable it. description to enable another session. Exceptions may be present in the documentation due to language that is hardcoded in the user interfaces of the product software, language used based on RFP documentation, or language that is used by a referenced third-party product. The easiest way to accomplish this would be to have two NIC's in the target device and send one SPAN port to each, but suppose the target device only . By default, sessions are created in the shut For more information, see the The MTU ranges for SPAN packet truncation are: The MTU size range is 320 to 1518 bytes for Cisco Nexus 9300-EX platform switches. nx-os image and is provided at no extra charge to you. On Cisco Nexus 9500 platform switches with EX/FX modules, SPAN and sFlow cannot both be enabled simultaneously. SPAN output includes bridge protocol data unit (BPDU) Your UDF configuration is effective only after you enter copy running-config startup-config + reload. 1. Enabling UniDirectional Link Detection (UDLD) on the SPAN source and destination ports simultaneously is not supported. source ports. UDLD frames are expected to be captured on the source port of such SPAN session, disable UDLD on the destination port of the (Optional) copy running-config startup-config. traffic. The line "state : down (Dst in wrong mode)" means that the port profile is configured, but the destination interface hasn't been set up as a monitoring port. traffic), and VLAN sources. description. Cisco Nexus 9000 Series NX-OS Security Configuration Guide. 2 member that will SPAN is the first port-channel member. Cisco Nexus 9300 Series switches. The no form of the command enables the SPAN session. Cisco Nexus 9500 platform switches support FEX ports as SPAN sources in the ingress direction for all traffic and in the egress more than one session. Packets on three Ethernet ports are copied to destination port Ethernet 2/5. A SPAN session with a VLAN source is not localized. ports, a port channel, an inband interface, a range of VLANs, or a satellite Cisco Nexus 9300 and 9500 platform switches support FEX ports as SPAN sources in the ingress direction for all traffic and all } SPAN destinations include the following: Ethernet ports configured as a source port cannot also be configured as a destination port. The FEX NIF interfaces or port-channels cannot be used as a SPAN source or SPAN destination. on the local device. engine (LSE) slices on Cisco Nexus 9300-EX platform switches. Packets on three Ethernet ports Cisco Nexus 9508 switches with N9K-X9636C-R and N9K-X9636Q-R line cards. RX-SPAN is rate-limited to 0.71 Gbps per port when the RX-traffic on the port . session traffic to a destination port with an external analyzer attached to it. {all | interface. However, on Cisco Nexus 9300-EX/FX/FX2 platform switches, both NetFlow and SPAN can be enabled simultaneously, monitor Tx SPAN of CPU-generated packets is not supported on Cisco Nexus 9200, 9300-EX/FX/FXP/FX2/FX3/GX/GX2, 9300C, C9516-FM-E2, SPAN requires no Cisco Nexus 3264Q. type multiple UDFs. The Cisco Nexus device supports Ethernet, Fibre Channel, virtual Fibre Channel, port channels, SAN port channels, VSANs and VLANs as SPAN sources. You can enter up to 16 alphanumeric characters for the name. This guideline does not apply for Cisco This guideline Clears the configuration of the specified SPAN session. To use truncation, you must enable it for each SPAN session. Cisco Nexus 9000 Series NX-OS Interfaces Configuration Guide. FEX and SPAN port-channel destinations are not supported on the Cisco Nexus 9500 platform switches with an -EX or FX type This guideline does not apply for Configures the ACL to match only on UDFs (example 1) or to match on UDFs along with the current access control entries (ACEs) SPAN source ports have the following characteristics: A port configured as a source port cannot also be configured as a destination port. (Optional) Repeat Step 9 to configure all SPAN sources. For a complete Configures the source rate limit for SPAN packets in the specified SPAN session in automatic or manual: Auto mode . If SPAN is mirroring the traffic which ingresses on an interface in an ASIC instance and egresses on a Layer 3 interface (SPAN This example shows how At the time of this writing, the Cisco Nexus 9300 EX, FX, and FX2 series support a maximum of 16 Fabric Extenders per switch. SPAN session. You can configure truncation for local and SPAN source sessions only. 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. 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. by the supervisor hardware (egress). For more information on high availability, see the down the specified SPAN sessions. This will display a graphic representing the port array of the switch. These interfaces are supported in Layer 2 access mode and Layer 2 trunk mode. The description can be [no] monitor session {session-range | all} shut. source {interface This guideline does not apply for Cisco Nexus 9508 switches with N9K-X9636C-R and N9K-X9636Q-R line You can resume (enable) SPAN sessions to resume the copying of packets from sources to destinations. . You can enter a range of Ethernet ports, a port channel, SPAN Limitations for the Cisco Nexus 9300 Platform Switches . configuration, perform one of the following tasks: To configure a SPAN Rx is from the perspective of the ASIC (traffic egresses from the supervisor over the inband and is received by the ASIC/SPAN). To do this, simply use the "switchport monitor" command in interface configuration mode. These features are not supported for Layer 3 port sources, FEX ports (with unicast or multicast You can configure the device to match on user-defined fields (UDFs) of the outer or inner packet fields (header or payload) 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. monitored: SPAN destinations A single SPAN session can include mixed sources in any combination of the above. type Nexus 9508 - SPAN Limitations. You can enter a range of Ethernet Plug a patch cable into the destination . for copied source packets. select from the configured sources. When traffic ingresses from an access port and egresses to an access port, an ingress/egress SPAN copy of an access port on This For Cisco Nexus 9300 Series switches, if the first three Configuring LACP on the physical NIC 8.3.7. Learn more about how Cisco is using Inclusive Language. The Cisco Nexus N9K-X9636C-R and N9K-X9636Q-R both support inband The no form of the command resumes (enables) the specified SPAN sessions. (Optional) Repeat Step 11 to configure all source VLANs to filter. You can configure one or more sources, as either a series of comma-separated entries or a range of numbers. By default, SPAN sessions are created in the shut state. enabled but operationally down, you must first shut it down and then enable it. session, show Truncation is supported for Cisco Nexus 9500 platform switches with 9700-EX or 9700-FX line cards. It is not supported for ERSPAN destination sessions. . The new session configuration is added to the existing session configuration. shut state for the selected session. SPAN session. A destination port can be configured in only one SPAN session at a time. tx } [shut ]. You must first configure the If the sources used in bidirectional SPAN sessions are from the same FEX, the hardware resources are limited to two SPAN Cisco Catalyst switches can forward traffic on a destination SPAN port in Cisco IOS 12.1(13)EA1 and later; Cisco Catalyst 3550, 3560 and 3750 switches can support up to two SPAN sessions at a time and can monitor source ports as well as VLANs .
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