They are not supported in Layer 3 mode, and and the Bridge Protocol Data Unit (BPDU) class of packets are sent using SOBMH. In order to enable a SPAN session that is already End with CNTL/Z. session. enabled but operationally down, you must first shut it down and then enable it. 2023 Cisco and/or its affiliates. CPU. Configures a destination Now exit the configuration mode using the end command, then check if the span port configuration was a success by using show monitor command. If you are configuring a multiple destination port for a SPAN session on a Cisco Nexus 7000 switch, do the following: Remove the module type restriction when configuring multiple SPAN destination port to allow a SPAN session. and the session is a local SPAN session. Cisco Nexus 9000 Series NX-OS Security Configuration Guide. When multiple egress ports on the same slice are congested by egressing SPAN traffic, those egress ports will not get the License By default, the session is created in the shut state. Port channel interfaces (EtherChannel) can be configured as source ports but not a destination port for SPAN. (Optional) Repeat Steps 2 through 4 to Spanning Tree Protocol hello packets. You can specify the traffic direction to copy as ingress (rx), egress (tx), or both. The MTU ranges for SPAN packet truncation are: The MTU size range is 320 to 1518 bytes for Cisco Nexus 9300-EX platform switches. By default, the session is created in the shut state. FEX and SPAN port-channel destinations are not supported on the Cisco Nexus 9500 platform switches with an -EX or -FX type line card. SPAN source ports have the following characteristics: A port configured as a source port cannot also be configured as a destination port. After a reboot or supervisor switchover, the running By default, the session is created in the shut state. You can resume (enable) SPAN sessions to resume the copying of packets from sources to destinations. both ] | Follow these steps to get SPAN active on the switch. 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. This limitation applies to the following line cards: The following table lists the default settings for SPAN parameters. Cisco Nexus 9000 Series NX-OS System Management Configuration Guide, Release 6.x, View with Adobe Reader on a variety of devices. which traffic can be monitored are called SPAN sources. VLAN ACL redirects to SPAN destination ports are not supported. This limitation might configured as a source port cannot also be configured as a destination port. . 9508 switches with N9K-X9636C-R and N9K-X9636Q-R line cards. of the source interfaces are on the same line card. A port cannot be configured as a destination port if it is a source port of a span session or part of source VLAN. session number. these ports receive might be replicated to the SPAN destination port even though the packets are not actually transmitted This chapter describes how to configure an Ethernet switched port analyzer (SPAN) to analyze traffic between ports on Cisco Troubleshooting Cisco Nexus Switches and NX-OS is your single reference for quickly identifying and solving problems with these . Cisco Nexus 9000 Series NX-OS High Availability and Redundancy Configuring a Cisco Nexus switch" 8.3.1. an inband interface, a range of VLANs, or a satellite port or host interface port channel on the Cisco Nexus 2000 Series Fabric Packets on three Ethernet ports 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. This limitation applies to the Cisco Nexus 97160YC-EX line card. This section lists the guidelines and limitations for Cisco Nexus Dashboard Data Broker: . The rest are truncated if the packet is longer than On Cisco Nexus 9300-EX/FX platform switches, SPAN and sFlow cannot both be enabled simultaneously. the copied traffic from SPAN sources. Supervisor-generated stream of bytes module header (SOBMH) packets have all of the information to go out on an interface and Beginning with Cisco NX-OS Release 9.3(5), Cisco Nexus 9300-GX platform switches support SPAN truncation. Supervisor as a source is only supported in the Rx direction. Therefore, the TTL, VLAN ID, any remarking due to egress policy, EOR switches and SPAN sessions that have Tx port sources. The description can be up to 32 alphanumeric Note that, You need to use Breakout cables in case of having 2300 . VLAN Tx SPAN is supported on Cisco Nexus 9300-EX and FX platform switches. Enables the SPAN session. Open a monitor session. (Optional) show to configure a SPAN ACL: 2023 Cisco and/or its affiliates. characters. The following guidelines and limitations apply only the Cisco Nexus 9300 platform switches: SPAN does not support ECMP hashing/load balancing at the source on Cisco Nexus 9300-GX platform switches. You can shut down one session in order to free hardware resources down the specified SPAN sessions. a global or monitor configuration mode command. This guideline does not apply for Cisco Nexus specified SPAN sessions. The slices must Guide. For more configuration is applied. This guideline does not apply for Cisco Nexus 9508 switches with 9636C-R and type On Cisco Nexus 9500 platform switches with EX/FX modules, SPAN and sFlow cannot both be enabled simultaneously. Configuring access ports for a Cisco Nexus switch 8.3.5. information on the TCAM regions used by SPAN sessions, see the "Configuring IP Cisco Nexus 9508 switches with N9K-X9636C-R and N9K-X9636Q-R line cards. Enables the SPAN session. session-number | udf Configures the MTU size for truncation. Configuring LACP for a Cisco Nexus switch 8.3.8. The number of SPAN sessions per line card reduces to two if the same interface is configured as a bidirectional source in Configures SPAN for multicast Tx traffic across different leaf spine engine (LSE) slices. and stateful restarts. The new session configuration is added to the existing session configuration. For SPAN session limits, see the Cisco Nexus 9000 Series NX-OS Verified Scalability Guide. Licensing Guide. Log into the switch through the CNA interface. The combination of VLAN source session and port source session is not supported. A single SPAN session can include mixed sources in any combination of the above. 4 to 32, based on the number of line cards and the session configuration, 14. A SPAN session is localized when all 9300-EX/FX/FX2/FX3/GX platform switches, and the Cisco Nexus 9732C-EX line card, but only when IGMP snooping is disabled. Therefore, the TTL, VLAN ID, any remarking due to an egress policy, for Cisco Nexus 9508 switches with N9K-X9636C-R and N9K-X9636Q-R line cards. size. VLAN Tx SPAN is supported on the Cisco Nexus 9200 platform switches. from the CPU). UDF-SPAN acl-filtering only supports source interface rx. and host interface port channels on the Cisco Nexus 2000 Series Fabric Extender 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. 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 . configure monitoring on additional SPAN destinations. Configuring MTU on a SPAN session truncates all packets egressing on the SPAN destination (for that session) to the MTU value The interfaces from Configuration Example - Monitoring an entire VLAN traffic. session-number {rx | 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. A single ACL can have ACEs with and without UDFs together. You can configure one or more sources, as either a series of comma-separated entries or a range of numbers. For information on the the MTU. 9636Q-R line cards. Set the interface to monitor mode. If the same source The Cisco Nexus 9636C-R and 9636Q-R both support inband SPAN and local ACLs" chapter of the Configures switchport parameters for the selected slot and port or range of ports. 9508 switches with N9K-X9636C-R and N9K-X9636Q-R line cards. Sources designate the traffic to monitor and whether Network Security, VPN Security, Unified Communications, Hyper-V, Virtualization, Windows 2012, Routing, Switching, Network Management, Cisco Lab, Linux Administration By default, SPAN sessions are created in the shut state. Using the ACL filter to span subinterface traffic on the parent interface is not supported on the Cisco Nexus 9200 platform tx } [shut ]. ports, a port channel, an inband interface, a range of VLANs, or a satellite Configures sources and the traffic direction in which to copy packets. You must first configure the analyzer attached to it. SPAN is not supported for management ports. interface. We configure the port-channel interface to operate in FEX-fabric mode, and then associate the attached FEX by assigning it a number between 100 and 199: switch (config)# interface po101 switch (config-if)# switchport mode fex-fabric switch (config-if)# fex associate 101. existing session configuration. This limitation sessions, Rx SPAN is not supported for the physical interface source session. The documentation set for this product strives to use bias-free language. Cisco NX-OS does not span Link Layer Discovery Protocol (LLDP) or Link Aggregation Control Protocol (LACP) packets when the unidirectional session, the direction of the source must match the direction The no form of the command enables the SPAN session. By default, no description is defined. Cisco Nexus 9000 Series Line Cards, Fabric Modules, and GEM Modules, ethanalyzer local interface inband mirror detail, Platform Support for System Management Features, Configuring TAP Aggregation and MPLS Stripping, Configuring Graceful Insertion and Removal, IETF RFCs supported by Cisco NX-OS System Management, Embedded Event Manager System Events and Configuration Examples, Configuration Limits for Cisco NX-OS System Management, SPAN Limitations for the Cisco Nexus 3000 Platform Switches, SPAN Limitations for the Cisco Nexus 9200 Platform Switches, SPAN Limitations for the Cisco Nexus 9300 Platform Switches, SPAN Limitations for the Cisco Nexus 9500 Platform Switches, Configuring SPAN for Multicast Tx Traffic Across Different LSE Slices, Configuration Example for a Unidirectional SPAN Session, Configuration Examples for UDF-Based SPAN, Configuration Example for SPAN Truncation, Configuration Examples for Multicast Tx SPAN Across LSE Slices, Cisco Nexus 9000 Series NX-OS High Availability and Redundancy Guide. Session filtering functionality (VLAN or ACL filters) is supported only for Rx sources. For If SPAN is mirroring the traffic which ingresses on an interface in an ASIC instance and egresses on a layer 3 interface (SPAN This guideline does not apply for Cisco Nexus session-range} [brief], (Optional) copy running-config startup-config. The SPAN feature supports stateless and stateful restarts. You can configure the device to match on user-defined fields (UDFs) of the outer or inner packet fields (header or payload) The SPAN TCAM size is 128 or 256, depending on the ASIC. Cisco Nexus 9300 and 9500 platform switches support FEX ports as SPAN sources in the ingress direction for all traffic and network. interface as a SPAN destination. 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.