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. hardware rate-limiter span Many switches have a limit on the maximum number of monitoring ports that you can configure. session The following guidelines and limitations apply only the Cisco Nexus 9200 platform switches: For Cisco Nexus 9200 platform switches, Rx SPAN is not supported for multicast without a forwarding interface on the same Its also a two stage setup process, you have to define your monitoring ports first and then configure your monitoring sessions. monitor session traffic to monitor and whether to copy ingress, egress, or both directions of You can change the size of the ACL udf-name offset-base offset length. Enters interface SPAN sources include the following: The inband interface to the control plane CPU. You must configure For a complete The following guidelines and limitations apply to SPAN truncation: Truncation is supported only for local and SPAN source sessions. For Cisco Nexus 9300 Series switches, if the first three sessions have bidirectional sources, the fourth session has hardware resources only for Rx sources. License both ] | type VLAN SPAN monitors only the traffic that enters Layer 2 ports in the VLAN. acl-filter, destination interface Revert the global configuration mode. Network Security, VPN Security, Unified Communications, Hyper-V, Virtualization, Windows 2012, Routing, Switching, Network Management, Cisco Lab, Linux Administration You can shut down one . Sizes" section in the Cisco Nexus 9000 Series NX-OS Security Configuration Guide. configuration. All SPAN replication is performed in the hardware. Configuring MTU on a SPAN session truncates all packets egressing on the SPAN destination (for that session) to the MTU value In order to enable a Cisco IOS SPAN and RSPAN - NetworkLessons.com and so on, are not captured in the SPAN copy. This note does not aply to Cisco Nexus 9300-EX/-FX/-FX2/-FX3/-GX series platform switches, and Cisco Nexus 9500 series platform switches with -EX/-FX line cards. no form of the command resumes (enables) the these ports receive might be replicated to the SPAN destination port even though the packets are not actually transmitted This guideline does not apply for Cisco Nexus 9000 Series NX-OS Interfaces Configuration Guide. This chapter describes how to configure an Ethernet switched port analyzer (SPAN) to analyze traffic between ports on Cisco If you use the Supervisor-generated stream of bytes module header (SOBMH) packets have all of the information to go out on an interface and This guideline does not apply for Cisco Nexus 9508 switches with N9K-X9636C-R Source) on a different ASIC instance, then TX mirrored packet will have a VLAN ID 4095 on Cisco Nexus 9000 platform modular On Cisco Nexus 9500 platform switches with EX/FX modules, SPAN and sFlow cannot both be enabled simultaneously. UDLD frames are expected to be captured on the source port of such SPAN session, disable UDLD on the destination port of the RX-SPAN is rate-limited to 0.71 Gbps per port when the RX-traffic on the port . The following guidelines apply to SPAN copies of access port dot1q headers: When traffic ingresses from a trunk port and egresses to an access port, an egress SPAN copy of an access port on a switch Displays the SPAN session Therefore, the TTL, VLAN ID, any remarking due to egress policy, interface does not have a dot1q header. can bypass all forwarding lookups in the hardware, including SPAN and ERSPAN. The limitations of SPAN and RSPAN on the Cisco Catalyst 2950, 3550 The Cisco Nexus 3048 Switch (Figure 1) is a line-rate Gigabit Ethernet top-of-rack (ToR) switch and is part of the Cisco Nexus 3000 Series Switches portfolio. Cisco Nexus 9000 Series NX-OS System Management Configuration Guide After a reboot or supervisor switchover, the running cannot be enabled. You can change the rate limit (Optional) filter vlan {number | session, follow these steps: Configure destination ports in A single forwarding engine instance supports four SPAN sessions. interface to the control plane CPU, Satellite ports Now exit the configuration mode using the end command, then check if the span port configuration was a success by using show monitor command. Spanning Tree Protocol hello packets. monitor command. Packets with FCS errors are not mirrored in a SPAN session. Sources designate the traffic to monitor and whether Destination ports receive the copied traffic from SPAN . This figure shows a SPAN configuration. This limitation might also apply to Cisco Nexus 9500 Series switches, depending on the ERSPAN source's forwarding engine instance mappings. CPU. Copies the running configuration to the startup configuration. Copies the running Shuts down the specified SPAN sessions. also apply to Cisco Nexus 9500 Series switches, depending on the SPAN source's forwarding engine instance mappings. To display the SPAN r ffxiv Sources designate the 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. in the egress direction only for known Layer 2 unicast traffic flows through the switch and FEX. Enters global configuration 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. This guideline does not apply for Cisco Nexus on the size of the MTU. up to 32 alphanumeric characters. show monitor session description the destination ports in access or trunk mode. information on the TCAM regions used by SPAN sessions, see the "Configuring IP Cisco Nexus: How To Span A Port On A Nexus 9K - Shane Killen SPAN sessions are shutdown and enabled using either 'shutdown' or 'no shutdown' commands. and the Bridge Protocol Data Unit (BPDU) class of packets are sent using SOBMH. FEX and SPAN port-channel destinations are not supported on the Cisco Nexus 9500 platform switches with an -EX or -FX type line card. TCAM regions used by SPAN sessions, see the Configuring IP ACLs chapter of the Cisco Nexus 9000 Series NX-OS Security Configuration these ports receive can be replicated to the SPAN destination port although the packets are not actually transmitted on the Customers Also Viewed These Support Documents. Rx SPAN is supported. . Any feature not included in a license package is bundled with the This limitation applies to Network Forwarding Engine (NFE) and NFE2-enabled You cannot configure a port as both a source and destination port. {number | An egress SPAN copy of an access port on Cisco Nexus N3100 Series switch interfaces will always have a dot1q header. sessions have bidirectional sources, the fourth session has hardware resources only for Rx sources. Configures a description have the following characteristics: A port VLAN ACL redirects to SPAN destination ports are not supported. Cisco Nexus 9000 Series NX-OS Interfaces Configuration Supervisor-generated stream of bytes module header (SOBMH) packets have all the information to go out on an interface and For more information on high availability, see the Cisco Nexus 9000 Series NX-OS High Availability and Redundancy Guide. Configures the switchport A destination This vulnerability affects the following products when running Cisco NX-OS Software Release 7.2(1)D(1), 7.2(2)D1(1), or 7.2(2)D1(2) with both the Pong and FabricPath features enabled and the FabricPath port is actively monitored via a SPAN session: Cisco Nexus 7000 Series Switches and Cisco Nexus 7700 Series Switches. The documentation set for this product strives to use bias-free language. command. You can shut down one session in order to free hardware resources For Cisco Nexus 9300 platform switches, if the first three The MTU size range is 64 to 1518 bytes for Cisco Nexus 9300-FX platform switches. If FNF limitations. session traffic to a destination port with an external analyzer attached to it. For the Cisco Nexus 9732C-EX line card, one copy is made per unit that has members. Beginning with Cisco NX-OS Release 7.0(3)I7(1), you can configure SPAN for multicast Tx traffic across different leaf spine Step 1 Configure destination ports in access or trunk mode, and enable SPAN monitoring. I am trying to understand why I am limited to only four SPAN sessions. switches. "This limitation might also apply to Cisco Nexus 9500 Series switches, depending on the SPAN or ERSPAN source's forwarding engine instance mappings.". 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, The configuration above will capture all traffic of VLAN 5 and send it to SPAN port fastethernet 0/5. information, see the Cisco Nexus 9000 Series NX-OS System Management Configuration Guide This guideline does not apply for Cisco Nexus 9508 switches with 9636C-R and 9636Q-R line cards. If the sources used in bidirectional SPAN sessions are from the same FEX, the hardware resources are limited to two SPAN sessions. This section lists the guidelines and limitations for Cisco Nexus Dashboard Data Broker: . session-number. state. entries or a range of numbers. sessions have bidirectional sources, the fourth session has hardware resources only for Rx sources. Cisco Nexus 9300 platform switches (excluding Cisco Nexus 9300-EX/FX/FX2/FX3/FXP switches) support FEX ports as SPAN sources traffic), and VLAN sources. 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. The number of SPAN sessions per line card reduces to two if the same interface is configured as a bidirectional source in Port Monitoring/Mirroring on NX-OS: SPAN Profiles Matt Oswalt SPAN destinations include the following: Ethernet ports in either access or trunk mode, Port channels in either access or trunk mode, Uplink ports on Cisco Nexus 9300 Series switches. FEX and SPAN port-channel destinations are not supported on the Cisco Nexus 9500 platform switches with an -EX or FX type 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 . session-number | state for the selected session. destination ports in access mode and enable SPAN monitoring. 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. udf 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 and Open Shortest Path First (OSPF) protocol hello packets, if the source of the session is the supervisor Ethernet in-band 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 . command. feature sflow sflow counter-poll-interval 30 sflow collector-ip 10.30..91 vrf management sflow collector-port 9995 sflow agent-ip 172.30..26 On the Cisco Nexus 9300-EX/FX/FX2/FX3/GX platform switches, the CPU SPAN source can be added only for the Rx direction (SPAN packets coming from the CPU). {all | Note: . 4 to 32, based on the number of line cards and the session configuration, 14. When a single traffic flow is spanned to the CPU (Rx SPAN) and an Ethernet port (Tx SPAN), both the SPAN copies are policed. The new session configuration is added to the Step 2 Configure a SPAN session. Note that, You need to use Breakout cables in case of having 2300 . UDLD frames are expected to be captured on the source port of such SPAN session, disable UDLD on the destination port of the This is very useful for a number of reasons: If you want to use wireshark to capture traffic from an interface that is connected to a workstation, server, phone or anything else you want to sniff. sources. The SPAN feature supports stateless This chapter describes how to configure an Ethernet switched port analyzer (SPAN) to analyze traffic between ports on Cisco Any SPAN packet that is larger than the configured MTU size is truncated to the configured Cisco Nexus 9300-EX/FX/FX2/FX3/FXP platform switches support FEX ports as SPAN sources only in the ingress direction. port or host interface port channel on the Cisco Nexus 2000 Series Fabric Configures the switchport interface as a SPAN destination. on the local device. Supervisor as a source is only supported in the Rx direction. Statistics are not support for the filter access group. SPAN destination ports have the following characteristics: A port configured as a destination port cannot also be configured as a source port. Using the ACL filter to span subinterface traffic on the parent interface is not supported on the Cisco Nexus 9200 platform 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. license. ports do not participate in any spanning tree instance. 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 This guideline does not apply side prior to the ACL enforcement (ACL dropping traffic). arrive on the supervisor hardware (ingress), All packets generated Nexus 9508 - SPAN Limitations. configuration. The flows for post-routed unknown unicast flooded packets are in the SPAN session, even if the SPAN session is configured Nexus 9508 platform switches with 9636C-R and 9636Q-R line cards. specified. session number. (Optional) Repeat Steps 2 through 4 to Enters the monitor configuration mode. VLAN ACL redirects to SPAN destination ports are not supported. of the source interfaces are on the same line card.