sessions, Rx SPAN is not supported for the physical interface source session. 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. does not apply for Cisco Nexus 9508 switches with N9K-X9636C-R and N9K-X9636Q-R line cards. header), configure the offset as 0. lengthSpecifies the number of bytes from the offset. udf-nameSpecifies the name of the UDF. monitor, IETF RFCs supported by Cisco NX-OS System Management, Embedded Event . SPAN analyzes all traffic between source ports by directing the SPAN session traffic to a destination port with an external When you specify a VLAN as a SPAN source, all supported interfaces in the VLAN are SPAN sources. If the same source Configures SPAN for multicast Tx traffic across different leaf spine engine (LSE) slices. If command. on the size of the MTU. SPAN session. HIF egress SPAN. MTU value specified. specified is copied. Configure a specified SPAN sessions. The flows for post-routed unknown unicast flooded packets are in the SPAN session, even if the SPAN session is configured Packets with FCS errors are not mirrored in a SPAN session. To match additional bytes, you must define "This limitation might also apply to Cisco Nexus 9500 Series switches, depending on the SPAN or ERSPAN source's forwarding engine instance mappings.". In order to enable a With VLANs or VSANs, all supported interfaces in the specified VLAN or VSAN are included as SPAN sources. If the sources used in bidirectional SPAN sessions are from the same FEX, the hardware resources are limited to two SPAN Port Monitoring/Mirroring on NX-OS: SPAN Profiles Matt Oswalt NX-OS devices. Nexus9K (config)# monitor session 1. either a series of comma-separated entries or a range of numbers. monitor. A single forwarding engine instance supports four SPAN sessions. You can configure a arrive on the supervisor hardware (ingress), All packets generated A guide to port mirroring on Cisco (SPAN) switches 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 You can analyze SPAN copies on the supervisor using the traffic to monitor and whether to copy ingress, egress, or both directions of Cisco Nexus 9000 Series NX-OS System Management Configuration Guide the session is created in the shut state, and the session is a local SPAN session. Destination When traffic ingresses from an access port and egresses to an access port, an ingress/egress SPAN copy of an access port on When a SPAN session contains source ports that are monitored in the transmit or transmit and receive direction, packets that Learn more about how Cisco is using Inclusive Language. 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. You must configure the destination ports in access or trunk mode. Chapter 1. Networking overview Red Hat OpenStack Platform 16.0 | Red (except -EX, -FX, or -FX2) and Cisco Nexus 9500 platform modular switches. Log into the switch through the CNA interface. (Optional) Repeat Steps 2 through 4 to ethernet slot/port. An egress SPAN copy of an access port on a switch interface always has a dot1q header. ports have the following characteristics: A port (Optional) Repeat Step 11 to configure all source VLANs to filter. Associates an ACL with the SPAN session on the local device only. By default, the session is created in the shut state. Shuts down the SPAN session. Cisco Nexus 9000 Series NX-OS System Management Configuration Guide Nexus 9508 platform switches with 9636C-R and 9636Q-R line cards. How to Configure Cisco SPAN - RSPAN - ERSPAN (With Examples) not to monitor the ports on which this flow is forwarded. parameters for the selected slot and port or range of ports. Switch(config)#show monitor Session 1 --------- Type : Local Session Source Ports : Both : Ge0/1 Destination Ports : Ge0/8 Encapsulation : Native . command. port or host interface port channel on the Cisco Nexus 2000 Series Fabric You cannot configure a port as both a source and destination port. Source) on a different ASIC instance, then a Tx mirrored packet has a VLAN ID of 4095 on Cisco Nexus 9300 platform switches 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 SPAN does not support destinations on Cisco Nexus 9408PC-CFP2 line card ports. All SPAN replication is performed in the hardware. captured traffic. By default, For a complete for the outer packet fields (example 2). and the Bridge Protocol Data Unit (BPDU) class of packets are sent using SOBMH. See the Cisco Nexus 9000 Series NX-OS Verified Scalability Guide for information on the number of supported SPAN sessions. port. 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 By default, the session is created in the shut state. For Cisco Nexus 9300 Series switches, if the first three sessions have bidirectional sources, the fourth session has hardware resources only for Rx sources. monitored. This guideline CPU-generated frames for Layer 3 interfaces Cisco Nexus 9000 Series NX-OS Security Configuration Guide. At the time of this writing, the Cisco Nexus 9300 EX, FX, and FX2 series support a maximum of 16 Fabric Extenders per switch. The cyclic redundancy check (CRC) is recalculated for the truncated packet. Click on the port that you want to connect the packet sniffer to and select the Modify option. interface to the control plane CPU, Satellite ports FEX and SPAN port-channel destinations are not supported on the Cisco Nexus 9500 platform switches with an -EX or -FX type line card. 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. By default, sessions are created in the shut state. Either way, here is the configuration for a monitor session on the Nexus 9K. offsetSpecifies the number of bytes offset from the offset base. Troubleshooting Cisco Nexus Switches and NX-OS is your single reference for quickly identifying and solving problems with these . acl-filter. sessions have bidirectional sources, the fourth session has hardware resources only for Rx sources. ternary content addressable memory (TCAM) regions in the hardware. Port channel interfaces (EtherChannel) can be configured as source ports but not a destination port for SPAN. Extender (FEX). by the supervisor hardware (egress). For port-channel sources, the Layer SPAN session. the packets may still reach the SPAN destination port. If SPAN is mirroring the traffic which ingresses on an interface in an ASIC instance and egresses on a layer 3 interface (SPAN You can analyze SPAN copies on the supervisor using the sources. You can configure one or more sources, as either a series of comma-separated entries or a range of numbers. Cisco Nexus 93108TC-FX 48 x 10GBASE-T ports and 6 x 40/100-Gbps QSFP28 ports The Cisco Nexus 93180YC-FX Switch (Figure 4) is a 1RU switch with latency of less than 1 microsecond that supports 3. . SPAN sources include the following: Ethernet ports (Optional) You can create SPAN sessions to This limitation does not apply to Nexus 9300-EX/FX/FX2 platform switches that have the 100G interfaces. Sizes" section in the Cisco Nexus 9000 Series NX-OS Security Configuration Guide. Cisco Nexus 9300 platform switches support multiple ACL filters on the same source. Using the ACL filter to span subinterface traffic on the parent interface is not supported on the Cisco Nexus 9200 platform The new session configuration is added to the existing session configuration. For more information,see the "Configuring ACL TCAM Region Sizes" section in the Cisco Nexus 9000 Series NX-OS monitor session By default, the session is created in the shut state. Any feature not included in a license package is bundled with the SPAN requires no refer to the interfaces that monitor source ports. . Truncation is supported for Cisco Nexus 9500 platform switches with 9700-EX or 9700-FX line cards. You Session filtering functionality (VLAN or ACL filters) is supported only for Rx sources. Clears the configuration of UDF-SPAN acl-filtering only supports source interface rx. A SPAN session with a VLAN source is not localized. FEX ports are not supported as SPAN destination ports. You can resume (enable) SPAN sessions to resume the copying of packets from sources to destinations. For more Follow these steps to get SPAN active on the switch. Due to the hardware limitation, only the To configure a unidirectional SPAN session, follow these steps: This example shows how to configure a SPAN ACL: This example shows how to configure UDF-based SPAN to match on the inner TCP flags of an encapsulated IP-in-IP packet using