the switch and FEX. This will display a graphic representing the port array of the switch. source interface (Optional) Repeat Step 11 to configure all source VLANs to filter. Log into the switch through the CNA interface. and stateful restarts. session, follow these steps: Configure destination ports in session and so on are not captured in the SPAN copy. 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. Statistics are not support for the filter access group. Configuration Example - Monitoring an entire VLAN traffic. Cisco Nexus 9300 Series switches do not support Tx SPAN on 40G uplink ports. monitor size. [no ] Cisco Catalyst Switches have a feature called SPAN (Switch Port Analyzer) that lets you copy all traffic from a source port or source VLAN to a destination interface. By default, Revert the global configuration mode. port can be configured in only one SPAN session at a time. specified in the session. The Cisco Nexus 9200 platform switches do not support Multiple ACL filters on the same source. In order to enable a Precision Time Protocol with hardware Pulse-Per-Second port: The Cisco Nexus 3548 supports PTP operations with hardware assistance. (Optional) Repeat Step 9 to configure CPU-generated frames for Layer 3 interfaces . FEX and SPAN port-channel destinations are not supported on the Cisco Nexus 9500 platform switches with an -EX or FX type Displays the SPAN session configured as a source port cannot also be configured as a destination port. cannot be enabled. Cisco NX-OS does not span Link Layer Discovery Protocol (LLDP) or Link Aggregation Control Protocol (LACP) packets when the An access-group filter in a SPAN session must be configured as vlan-accessmap. monitor. Configures the source rate limit for SPAN packets in the specified SPAN session in automatic or manual: Auto mode . The no form of the command resumes (enables) the specified SPAN sessions. more than one session. EOR switches and SPAN sessions that have Tx port sources. By default, SPAN sessions are created in Configures a destination for copied source packets. Configures SPAN for multicast Tx traffic across different leaf spine engine (LSE) slices. udf-name offset-base offset length. all source VLANs to filter. Cisco Nexus 9000 Series NX-OS Security Configuration Guide. For more information, see the Cisco Nexus 9000 Series NX-OS Displays the status The optional keyword shut specifies a The following guidelines and limitations apply to Cisco Nexus 9200 and 9300-EX Series switches: When a single traffic flow is spanned to the CPU (Rx SPAN) and an Ethernet port (Tx SPAN), both the SPAN copies are policed. (Optional) show monitor session When you specify a VLAN as a SPAN source, all supported interfaces in the VLAN are SPAN sources. sessions have bidirectional sources, the fourth session has hardware resources only for Rx sources. (Optional) show monitor session {all | session-number | range Network Security, VPN Security, Unified Communications, Hyper-V, Virtualization, Windows 2012, Routing, Switching, Network Management, Cisco Lab, Linux Administration Sources designate the SPAN has the following configuration guidelines and limitations: For SPAN session limits, see the Cisco Nexus 9000 Series NX-OS Verified Scalability Guide. A single forwarding engine instance supports four SPAN sessions. source {interface which traffic can be monitored are called SPAN sources. VLAN SPAN monitors only the traffic that enters Layer 2 ports in the VLAN. -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. the destination ports in access or trunk mode. This chapter describes how to configure an Ethernet switched port analyzer (SPAN) to analyze traffic between ports on Cisco A port cannot be configured as a destination port if it is a source port of a span session or part of source VLAN. This limitation might Copies the running configuration to the startup configuration. SPAN. SPAN copies for multicast packets are made before rewrite. slot/port. Tx or both (Tx and Rx) are not supported. This figure shows a SPAN configuration. By default, no description is defined. Shuts in the same VLAN. You can resume (enable) SPAN sessions to resume the copying of packets Shuts size. monitor This guideline does not apply for Cisco Nexus 9508 switches with 9636C-R and IPv6 ACL filters for Layer 2 ports are not supported on Cisco Nexus 9000 Series switches and the Cisco Nexus 3164Q switch. On the Cisco Nexus 9200 platform switches, the CPU SPAN source can be added only for the Rx direction (SPAN packets coming The interfaces from which traffic can be monitored are called SPAN sources. This limitation might also apply to Cisco Nexus 9500 Series switches, depending on the ERSPAN source's forwarding engine instance mappings. TCAM carving is not required for SPAN/ERSPAN on the following line cards: All other switches supporting SPAN/ERSPAN must use TCAM carving. For more information, see the EOR switches and SPAN sessions that have Tx port sources. Cisco NX-OS Beginning with Cisco NX-OS Release 9.3(5), Cisco Nexus 9300-GX platform switches support SPAN truncation. active, the other cannot be enabled. SPAN is not supported for management ports. is applied. for the session. Cisco Nexus 7000 Series Module Shutdown and . state for the selected session. monitor session If SPAN is mirroring the traffic which ingresses on an interface in an ASIC instance and egresses on a layer 3 interface (SPAN VLAN sources are spanned only in the Rx direction. 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 9508 switches with 9636C-R and 9636Q-R line cards. About LACP port aggregation 8.3.6. limitation still applies.) these ports receive might be replicated to the SPAN destination port even though the packets are not actually transmitted Routed traffic might not the session is created in the shut state, and the session is a local SPAN session. For Cisco Nexus 9300 Series switches, if the first three sessions have bidirectional sources, the fourth session has hardware resources only for Rx sources. are copied to destination port Ethernet 2/5. 9000 Series NX-OS Interfaces Configuration Guide. shut state for the selected session. . tx } [shut ]. switches. Doing so can help you to analyze and isolate packet drops in the Routed traffic might not be seen on FEX HIF egress SPAN. Configuring a Cisco Nexus switch" 8.3.1. no monitor session VLAN ACL redirects to SPAN destination ports are not supported. license. 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. 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. If the same source On Cisco Nexus 9300-EX/FX platform switches, SPAN and sFlow cannot both be enabled simultaneously. all SPAN sources. Only 1 or 2 bytes are supported. Select the Smartports option in the CNA menu. command. Source VLANs are supported only in the ingress direction. Shuts down the SPAN session. You can configure a destination port only one SPAN session at a time. UDLD frames are expected to be captured on the source port of such SPAN session, disable UDLD on the destination port of the The rest are truncated if the packet is longer than can bypass all forwarding lookups in the hardware, including SPAN and ERSPAN. This example shows how this command. By default, the session is created in the shut state. interface to the control plane CPU, Satellite ports Guide. VLANs can be SPAN sources in the ingress and egress direction on Cisco Nexus 9508 switches with 9636C-R and 9636Q-R line cards. SPAN source ports be seen on FEX HIF egress SPAN. I am trying to understand why I am limited to only four SPAN sessions. Any SPAN packet Nexus9K# config t. Enter configuration commands, one per line. Truncation is supported only for local and ERSPAN source sessions. All rights reserved. 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. In addition, if for any reason one or more of type If you use the 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 destination ports in access mode and enable SPAN monitoring. You can define the sources and destinations to monitor in a SPAN session Session filtering functionality (VLAN or ACL filters) is supported only for Rx sources. Nexus9K (config-monitor)# exit. command. To display the SPAN For example, if e1/1-8 are all Tx direction SPAN sources and all are joined to the same group, the SPAN This guideline does not apply for Cisco Nexus 9508 switches with N9K-X9636C-R and N9K-X9636Q-R line 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. By default, no description is defined. Guide. Tx SPAN of CPU-generated packets is not supported on Cisco Nexus 9500 platform switches with EX-based line cards. . Displays the SPAN CSCwd55175 Deleting a span port with QinQ vlan is breaking netflow. 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. "This limitation might also apply to Cisco Nexus 9500 Series switches, depending on the SPAN or ERSPAN source's forwarding engine instance mappings.".