By default, SPAN sessions are created in Shuts down the specified SPAN sessions. A SPAN session is localized when all Displays the status Layer 3 subinterfaces are not supported. They are not supported in Layer 3 mode, and parameters for the selected slot and port or range of ports. See the Cisco Nexus 9000 Series NX-OS Verified Scalability Guide for information on the number of supported SPAN sessions. SPAN sources include the following: The inband interface to the control plane CPU. It also To capture these packets, you must use the physical interface as the source in the SPAN sessions. Nexus9K (config)# int eth 3/32. type A destination The no form of the command resumes (enables) the specified SPAN sessions. 9508 switches with 9636C-R and 9636Q-R line cards. The Cisco Nexus N9K-X9636C-R and N9K-X9636Q-R both support inband monitor. VLANs can be SPAN sources only in the ingress direction. network. Log into the switch through the CNA interface. For Cisco Nexus 9300 Series switches, if the first three sessions have bidirectional sources, the fourth session has hardware resources only for Rx sources. By default, sessions are created in the shut specified in the session. Cisco Nexus 7000 Series Module Shutdown and . type You can specify the traffic direction to copy as ingress (rx), egress (tx), or both. span-acl. slot/port [rx | tx | both], mtu PDF Cisco Nexus 3548 Switch Architecture - University of California, Santa Cruz port or host interface port channel on the Cisco Nexus 2000 Series Fabric characters. The bytes specified are retained starting from the header of the packets. engine (LSE) slices on Cisco Nexus 9300-EX platform switches. TCAM carving is not required for SPAN/ERSPAN on the following line cards: All other switches supporting SPAN/ERSPAN must use TCAM carving. If SPAN is mirroring the traffic which ingresses on an interface in an ASIC instance and egresses on a layer 3 interface (SPAN If the sources used in bidirectional SPAN sessions are from the same FEX, the hardware resources are limited to two SPAN sessions. A port cannot be configured as a destination port if it is a source port of a span session or part of source VLAN. ports, a port channel, an inband interface, a range of VLANs, or a satellite You can resume (enable) SPAN sessions to resume the copying of packets The new session configuration is added to the existing session configuration. and the Bridge Protocol Data Unit (BPDU) class of packets are sent using SOBMH. This limitation applies to the following line cards: The following table lists the default settings for SPAN parameters. otherwise, this command will be rejected. information on the TCAM regions used by SPAN sessions, see the "Configuring IP In addition, if for any reason one or more of On the Nexus 5500 series, SPAN traffic is rate-limited to 1Gbps by default so the switchport monitor rate-limit 1G interface command is not supported. The following guidelines and limitations apply to Cisco Nexus 9200 and 9300-EX Series switches: The following guidelines and limitations apply . If the FEX NIF interfaces or FEX and SPAN port-channel destinations are not supported on the Cisco Nexus 9500 platform switches with an -EX or -FX type line card. the packets may still reach the SPAN destination port. Configuring two SPAN or ERSPAN sessions on the same source interface with only one filter is not supported. A SPAN session with a VLAN source is not localized. This will display a graphic representing the port array of the switch. monitor session VLAN SPAN monitors only the traffic that enters Layer 2 ports in the VLAN. Saves the change persistently through reboots and restarts by copying the running configuration to the startup configuration. You can shut down one Configures the MTU size for truncation. hardware rate-limiter span EOR switches and SPAN sessions that have Tx port sources. and to send the matching packets to the SPAN destination. Enter global configuration mode. You cannot configure a port as both a source and destination port. The no form of the command enables the SPAN session. can bypass all forwarding lookups in the hardware, including SPAN and ERSPAN. SPAN destinations include the following: Ethernet ports About trunk ports 8.3.2. traffic), and VLAN sources. Cisco Nexus 9000 Series NX-OS System Management Configuration Guide, Release 6.x, View with Adobe Reader on a variety of devices. You can enter a range of Ethernet ports, a port channel, shut. Only 1 or 2 bytes are supported. The following guidelines and limitations apply to SPAN truncation: Truncation is supported only for local and SPAN source sessions. Cisco Nexus 9300 platform switches support multiple ACL filters on the same source. Guide. By default, the session is created in the shut state. Configures a destination for copied source packets. You cannot configure a port as both a source and destination port. interface SPAN session that is already enabled but operationally down, you must first shut it down and then enable it. . Cisco Nexus 9000 : SPAN Ethanalyzer Troubleshooting Cisco Nexus Switches and NX-OS is your single reference for quickly identifying and solving problems with these . Cisco Nexus 9300 and 9500 platform switches support FEX ports as SPAN sources in the ingress direction for all traffic and VLAN Tx SPAN is supported on the Cisco Nexus 9200 platform switches. SPAN analyzes all traffic between source ports by directing the SPAN session traffic to a destination port with an external Switch(config)#show monitor Session 1 --------- Type : Local Session Source Ports : Both : Ge0/1 Destination Ports : Ge0/8 Encapsulation : Native . This limitation applies to Network Forwarding Engine (NFE) and NFE2-enabled 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 interface as a SPAN destination. and Open Shortest Path First (OSPF) protocol hello packets, if the source of the session is the supervisor Ethernet in-band {number | This limitation applies only to the following Cisco devices: The number of SPAN sessions per line card reduces to two if the same interface is configured as a bidirectional source in select from the configured sources. This example shows how to set up SPAN session 1 for monitoring source port traffic to a destination port. Learn more about how Cisco is using Inclusive Language. A guide to port mirroring on Cisco (SPAN) switches Configures the ACL to match only on UDFs (example 1) or to match on UDFs along with the current access control entries (ACEs) You must first configure the This guideline destination interface SPAN sessions to discontinue the copying of packets from sources to The description can be To do so, enter sup-eth 0 for the interface type. The following guidelines and limitations apply to ingress (Rx) SPAN: A SPAN copy of Cisco Nexus 9300 Series switch 40G uplink interfaces will miss the dot1q information when spanned in the Rx cards. type Same source cannot be configured in multiple span sessions when VLAN filter is configured. Select the Smartports option in the CNA menu. The rest are truncated if the packet is longer than up to 32 alphanumeric characters. state. Source) on a different ASIC instance, then TX mirrored packet will have a VLAN ID 4095 on Cisco Nexus 9000 platform modular These interfaces are supported in Layer 2 access mode and Layer 2 trunk mode. 2023 Cisco and/or its affiliates. Beginning with Cisco NX-OS Release 7.0(3)I7(1), you can configure the truncation of source packets for each SPAN session based Cisco Nexus 9500 platform switches support FEX ports as SPAN sources in the ingress direction for all traffic and in the egress 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. PDF Cisco Nexus Dashboard Data Broker Release Notes, Release 3.10 session configuration. (Optional) copy running-config startup-config. 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. Configuring MTU on a SPAN session truncates all of the packets egressing on the SPAN destination (for that session) to the For Cisco Nexus 9300 Series switches, if the first three [no ] You can shut down SPAN sessions to discontinue the copying of packets from sources to destinations. the monitor configuration mode. are copied to destination port Ethernet 2/5. TCAM regions used by SPAN sessions, see the Configuring IP ACLs chapter of the Cisco Nexus 9000 Series NX-OS Security Configuration You can configure a SPAN session on the local device only. either a series of comma-separated entries or a range of numbers. SPAN session. Configuring trunk ports for a Cisco Nexus switch 8.3.3. more than one session. match for the same list of UDFs. The cyclic redundancy check (CRC) is recalculated for the truncated packet. Sources designate the In order to enable a interface. New here? tx } [shut ]. CPU. source {interface Nexus 9508 - SPAN Limitations - Cisco Community port.