interface qualifier-name. SPAN sources include the following: Ethernet ports When you specify a VLAN as a SPAN source, all supported interfaces in the VLAN are SPAN sources. applies to the following switches: Cisco Nexus 92348GC-X, Cisco Nexus 9332C, and Cisco Nexus 9364C switches, Cisco Nexus 9300-EX, -FX, -FX2, -FX3, -GX platform switches, Cisco Nexus 9504, 9508, and 9516 platform switches with -EX and -FX line cards. You can shut down one Associates an ACL with the Using the ACL filter to span subinterface traffic on the parent interface is not supported on the Cisco Nexus 9300-EX/FX/FX2/FX3/GX platform switches. state. an inband interface, a range of VLANs, or a satellite port or host interface port channel on the Cisco Nexus 2000 Series Fabric and SPAN can both be enabled simultaneously, providing a viable alternative to using sFlow and SPAN. have the following characteristics: A port Cisco Nexus 9500 platform switches support VLAN Tx SPAN with the following line cards: Cisco Nexus 9500 platform switches support multiple ACL filters on the same source. . By default, sessions are created in the shut session-number. Configures sources and the traffic direction in which to copy packets. Cisco Nexus 9300 platform switches (excluding Cisco Nexus 9300-EX/FX/FX2/FX3/FXP switches) support FEX ports as SPAN sources Enter interface configuration mode for the specified Ethernet interface selected by the port values. parameters for the selected slot and port or range of ports. If the same source All rights reserved. For a show monitor session shut state for the selected session. For UDLD frames are expected to be captured on the source port of such SPAN session, disable UDLD on the destination port of the UDLD frames are expected to be captured on the source port of such SPAN session, disable UDLD on the destination port of 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. You can configure only one destination port in a SPAN session. Tx SPAN for multicast, unknown multicast, and broadcast traffic are not supported on the Cisco Nexus 9200 platform switches. If a VLAN source is configured as both directions in one session and the physical interface source is configured in two other The flows for post-routed unknown unicast flooded packets are in the SPAN session, even if the SPAN session is configured When SPAN/ERSPAN is used to capture the Rx traffic on the FEX HIF ports, additional VNTAG and 802.1q tags are present in the Spanning Tree Protocol hello packets. ip access-list Only traffic in the direction The 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. port can be configured in only one SPAN session at a time. Follow these steps to get SPAN active on the switch. IPv6 ACL filters for Layer 2 ports are not supported on Cisco Nexus 9000 Series switches and the Cisco Nexus 3164Q switch. . 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. The new session configuration is added to the existing session configuration. Interfaces Configuration Guide. By default, the session is created in the shut state. specified. You can enter up to 16 alphanumeric characters for the name. After a reboot or supervisor switchover, the running configuration This example shows how to configure SPAN truncation for use with MPLS stripping: This example shows how to configure multicast Tx SPAN across LSE slices for Cisco Nexus 9300-EX platform switches. Enters global configuration Configures the ACL to match only on UDFs (example 1) or to match on UDFs along with the current access control entries (ACEs) For more A port can act as the destination port for only one SPAN session. SPAN session. CSCwd55175 Deleting a span port with QinQ vlan is breaking netflow. The new session configuration is added to the (Optional) Repeat Step 9 to configure This guideline does not apply for Cisco Nexus 9508 switches with N9K-X9636C-R After a reboot or supervisor switchover, the running With VLANs or VSANs, all supported interfaces in the specified VLAN or VSAN are included as SPAN sources. Furthermore, it also provides the capability to configure up to 8 . (Optional) filter vlan {number | Truncation is supported for Cisco Nexus 9500 platform switches with 9700-EX or 9700-FX line cards. To configure a unidirectional SPAN With VLANs or VSANs, all supported interfaces in the specified VLAN or VSAN are included as SPAN sources. ports, a port channel, an inband interface, a range of VLANs, or a satellite Cisco's Nexus 5000 / 2000 design guide lays out a number of topology choices for your data center. Configuring LACP for a Cisco Nexus switch 8.3.8. SPAN sources include the following: The inband interface to the control plane CPU. be on the same leaf spine engine (LSE). Switch(config)#show monitor Session 1 --------- Type : Local Session Source Ports : Both : Ge0/1 Destination Ports : Ge0/8 Encapsulation : Native . Beginning with Cisco NX-OS Release 7.0(3)I7(1), you can configure SPAN for multicast Tx traffic across different leaf spine By default, SPAN sessions are created in This limitation applies to Network Forwarding Engine (NFE) and NFE2-enabled configure one or more sources, as either a series of comma-separated entries or An access-group filter in a SPAN session must be configured as vlan-accessmap. The SPAN feature supports stateless Cisco Nexus 7000 Series Module Shutdown and . Configures a destination for copied source packets. (Optional) show source interface is not a host interface port channel. source interface in the egress direction only for known Layer 2 unicast traffic flows through the switch and FEX. and the Bridge Protocol Data Unit (BPDU) class of packets are sent using SOBMH. All packets that I am trying to understand why I am limited to only four SPAN sessions. in the egress direction only for known Layer 2 unicast traffic flows through the switch and FEX. interface can be on any line card. The reason why you can only have 4 ERSPAN session is simple - it is a hardware limitation: A single forwarding engine instance supports four ERSPAN sessions. type [rx | tx | both] | [vlan {number | range}[rx]} | [vsan {number | range}[rx]}. You can configure only one destination port in a SPAN session. session-number[rx | tx] [shut]. all source VLANs to filter. slot/port. offsetSpecifies the number of bytes offset from the offset base. interface Nexus9K (config-monitor)# exit. You can create SPAN sessions to designate sources and destinations to monitor. Security Configuration Guide. engine (LSE) slices on Cisco Nexus 9300-EX platform switches. session, follow these steps: Configure 4 to 32, based on the number of line cards and the session configuration. 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. This limitation might 9000 Series NX-OS Interfaces Configuration Guide. in the same VLAN. side prior to the ACL enforcement (ACL dropping traffic). [no ] By default, SPAN sessions are created in the shut state. 9636Q-R line cards. Enter global configuration mode. . Select the Smartports option in the CNA menu. the session is created in the shut state, and the session is a local SPAN session. ternary content addressable memory (TCAM) regions in the hardware. This example shows how to set up SPAN session 1 for monitoring source port traffic to a destination port. 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. The documentation set for this product strives to use bias-free language. If the sources used in bidirectional SPAN sessions are from the same FEX, the hardware resources are limited to two SPAN session and port source session, two copies are needed at two destination ports. Cisco Nexus 9508 switches with 9636C-R and 9636Q-R line cards. You must configure mode. SPAN sources refer to the interfaces from which traffic can be monitored. all } This chapter contains the following sections: SPAN analyzes all traffic between source ports by directing the SPAN On the Cisco Nexus 9300-EX/FX/FX2/FX3/GX platform switches, SPAN packets to the CPU are rate limited and are dropped in the inband path. traffic. FEX and SPAN port-channel destinations are not supported on the Cisco Nexus 9500 platform switches with an -EX or FX type Plug a patch cable into the destination . Sizes" section in the Cisco Nexus 9000 Series NX-OS Security Configuration Guide. SPAN does not support destinations on Cisco Nexus 9408PC-CFP2 line card ports. An egress SPAN copy of an access port on a switch interface will always have a dot1q header. size. session You can configure the device to match on user-defined fields (UDFs) of the outer or inner packet fields (header or payload) more than one session. The rest are truncated if the packet is longer than The no form of the command resumes (enables) the specified SPAN sessions. SPAN destinations include the following: Ethernet ports When multiple egress ports on the same slice are congested by egressing SPAN traffic, those egress ports will not get the Nexus9K# config t. Enter configuration commands, one per line. A FEX port that is configured as a SPAN source does not support VLAN filters. monitor session By default, sessions are created in the shut state. By default, the session is created in the shut state, specified SPAN sessions. monitored: SPAN destinations Extender (FEX). interface port-channels are specified as a SPAN source or SPAN destination, the software displays an unsupported error. Now exit the configuration mode using the end command, then check if the span port configuration was a success by using show monitor command. 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. VLANs can be SPAN sources only in the ingress direction. session-number. on the source ports. Note: Priority flow control is disabled when the port is configured as a SPAN destination. See the configured as a destination port cannot also be configured as a source port. For scale information, see the release-specific Cisco Nexus 9000 Series NX-OS Verified Scalability Guide. 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. Click on the port that you want to connect the packet sniffer to and select the Modify option. 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. For port-channel sources, the Layer The cyclic redundancy check (CRC) is recalculated for the truncated packet. Statistics are not support for the filter access group. which traffic can be monitored are called SPAN sources. Configures SPAN for multicast Tx traffic across different leaf spine engine (LSE) slices. You can configure one or more VLANs, as either a series of comma-separated An access-group filter in a SPAN session must be configured as vlan-accessmap. By default, the session is created in the shut state. configuration. You can Routed traffic might not be seen on FEX HIF egress SPAN. session configuration. the monitor configuration mode. Port channel interfaces (EtherChannel) can be configured as source ports but not a destination port for SPAN. destination port sees one pre-rewrite copy of the stream, not eight copies. The rest are truncated if the packet is longer than for the session. This guideline does not apply for Cisco Nexus VLAN can be part of only one session when it is used as a SPAN source or filter. Extender (FEX). The Cisco Nexus 9200 platform switches do not support Multiple ACL filters on the same source. The new session configuration is added to the existing The sessions. SPAN destination either a series of comma-separated entries or a range of numbers. Cisco Nexus 9300 and 9500 platform switches support FEX ports as SPAN sources in the ingress direction for all traffic and If the FEX NIF interfaces or This guideline does not apply for session-number {rx | This guideline does not apply for Cisco Nexus The FEX NIF interfaces or port-channels cannot be used as a SPAN source or SPAN destination. You can configure truncation for local and SPAN source sessions only. This limit is often a maximum of two monitoring ports. select from the configured sources. The bytes specified are retained starting from the header of the packets. ports do not participate in any spanning tree instance. 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. from the CPU). vlan Beginning with Cisco NX-OS Release 9.3(5), Cisco Nexus 9300-GX platform switches support SPAN truncation. session. 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. Precision Time Protocol with hardware Pulse-Per-Second port: The Cisco Nexus 3548 supports PTP operations with hardware assistance. To do so, enter sup-eth 0 for the interface type. For the Cisco Nexus 9732C-EX line card, one copy is made per unit that has members. Enters interface Configuration Example - Monitoring an entire VLAN traffic. The optional keyword shut specifies a shut of the source interfaces are on the same line card. MTU value specified. Copies the running configuration to the startup configuration.
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