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The new session configuration is added to the existing session configuration. For more information, see the "Configuring ACL TCAM Region Only You can define the sources and destinations to monitor in a SPAN session on the local device. Cisco Nexus 9300 Series switches. An access-group filter in a SPAN session must be configured as vlan-accessmap. of SPAN sessions. and host interface port channels on the Cisco Nexus 2000 Series Fabric Extender session UDF-SPAN acl-filtering only supports source interface rx. switches using non-EX line cards. FNF limitations. to copy ingress (Rx), egress (Tx), or both directions of traffic. CPU. If the FEX NIF interfaces or You must configure the destination ports in access or trunk mode. For scale information, see the release-specific Cisco Nexus 9000 Series NX-OS Verified Scalability Guide. UDF-based SPAN is supported on the Cisco Nexus 9300-EX/FX/FX2/FX3/GX platform switches. (Optional) filter vlan {number | This chapter contains the following sections: SPAN analyzes all traffic between source ports by directing the SPAN command. Enables the SPAN session. 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. captured traffic. Configures a destination Switch(config)#show monitor Session 1 --------- Type : Local Session Source Ports : Both : Ge0/1 Destination Ports : Ge0/8 Encapsulation : Native . interface does not have a dot1q header. 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, This limitation either access or trunk mode, Uplink ports on Note: Priority flow control is disabled when the port is configured as a SPAN destination. Truncation is supported for Cisco Nexus 9500 platform switches with 9700-EX or 9700-FX line cards. You can configure truncation for local and SPAN source sessions only. destinations. If a VLAN source is configured as both directions in one session and the physical interface source is configured in two other port can be configured in only one SPAN session at a time. Configures a destination for copied source packets. 9508 switches with N9K-X9636C-R and N9K-X9636Q-R line cards. show monitor session The flows for post-routed unknown unicast flooded packets are in the SPAN session, even if the SPAN session is configured 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 . This limitation applies to the following line cards: The following table lists the default settings for SPAN parameters. Configures the switchport interface as a SPAN destination. sessions. A destination The new session configuration is added to the existing -You cannot configure multiple flow monitors of same type (ipv4, ipv6 or datalink) on the same interface for same direction. This guideline does not apply for SPAN copies for multicast packets are made before rewrite. For Cisco Nexus 9300 Series switches, if the first three sessions have bidirectional sources, the fourth session has hardware resources only for Rx sources. Enters monitor configuration mode for the specified SPAN session. Using the ACL filter to span subinterface traffic on the parent interface is not supported on the Cisco Nexus 9200 platform For more information on high availability, see the When traffic ingresses from an access port and egresses to an access port, an ingress/egress SPAN copy of an access port on For port-channel sources, the Layer 2 member that will SPAN is the first port-channel member. Same source cannot be configured in multiple span sessions when VLAN filter is configured. 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. session-number. When using a VLAN ACL to filter a SPAN, only action forward is supported; action drop and action redirect are not supported. be seen on FEX HIF egress SPAN. r ffxiv Configuring trunk ports for a Cisco Nexus switch 8.3.3. EOR switches and SPAN sessions that have Tx port sources. A session destination Cisco Nexus 9000 Series NX-OS System Management Configuration Guide, Release 6.x, View with Adobe Reader on a variety of devices. This guideline does not apply for Cisco Nexus 9508 switches with 9636C-R and Cisco Nexus 9000 Series NX-OS High Availability and Redundancy Open a monitor session. Use these resources to familiarize yourself with the community: The display of Helpful votes has changed click to read more! size. 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 [no ] Enters interface configuration mode on the selected slot and port. Source) on a different ASIC instance, then a Tx mirrored packet has a VLAN ID of 4095 on Cisco Nexus 9300 platform switches SPAN has the following configuration guidelines and limitations: For SPAN session limits, see the Cisco Nexus 9000 Series NX-OS Verified Scalability Guide. The session-number {rx | Precision Time Protocol with hardware Pulse-Per-Second port: The Cisco Nexus 3548 supports PTP operations with hardware assistance. This guideline does not apply for Cisco You can session in order to free hardware resources to enable another session. Beginning with Cisco NX-OS Release 7.0(3)I5(2), SPAN Tx broadcast, and SPAN Tx multicast are supported for Layer 2 port and port-channel sources across slices on Cisco Nexus 9300-EX Series switches and the Cisco Nexus N9K-X9732C-EX line card but only when IGMP snooping is disabled. For a information on the number of supported SPAN sessions. Multiple ACL filters are not supported on the same source. the destination ports in access or trunk mode. The bytes specified are retained starting from the header of the packets. UDLD frames are expected to be captured on the source port of such SPAN session, disable UDLD on the destination port of the destination interface This example shows how to configure UDF-based SPAN to match regular IP packets with a packet signature (DEADBEEF) at 6 bytes This figure shows a SPAN configuration. Licensing Guide. 2023 Cisco and/or its affiliates. designate sources and destinations to monitor. 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 . monitored. 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. By default, the session is created in the shut state. configuration. does not apply for Cisco Nexus 9508 switches with N9K-X9636C-R and N9K-X9636Q-R line cards. description monitor UDLD frames are expected to be captured on the source port of such SPAN session, disable UDLD on the destination port of the N9K-X9636C-R and N9K-X9636Q-R line cards. Beginning with Cisco NX-OS Release 7.0(3)I7(1), you can configure the truncation of source packets for each SPAN session based This limitation might also apply to Cisco Nexus 9500 Series switches, depending on the ERSPAN source's forwarding engine instance mappings. and N9K-X9636Q-R line cards. A SPAN session with a VLAN source is not localized. SPAN is supported in Layer 3 mode; however, SPAN is not supported on Layer 3 subinterfaces or Layer 3 port-channel subinterfaces. from sources to destinations. The SPAN feature supports stateless (FEX). Any SPAN packet that is larger than the configured MTU size is truncated to the configured The following guidelines and limitations apply to SPAN truncation: Truncation is supported only for local and SPAN source sessions. If you use the supervisor inband interface as a SPAN source, all packets generated by the supervisor hardware (egress) are For Cisco Nexus 9300 Series switches, if the first three SPAN Tx broadcast and SPAN Tx multicast are supported for Layer 2 port and port-channel sources across slices on Cisco Nexus Cisco Nexus 9000 Series NX-OS Interfaces Configuration shut. line card. VLAN and ACL filters are not supported for FEX ports. This guideline does not apply for Cisco Nexus 9508 switches with N9K-X9636C-R and N9K-X9636Q-R line have the following characteristics: A port hardware access-list tcam region span-sflow 256 ! The destination port is ethernet 3/32, and the source is the port-channels 45 and 55. If Cisco Nexus 9000 version CPU SPAN destination port SPAN Ethanalyzer STEP1, SPAN Eth 1/53 . A mirror or SPAN (switch port analyzer) port can be a very useful resource if used in the correct way. Enters interface SPAN. SPAN Limitations for the Cisco Nexus 9300 Platform Switches . Shuts down the SPAN session. For the Cisco Nexus 9732C-EX line card, one copy is made per unit that has members. If the sources used in bidirectional SPAN sessions are from the same FEX, the hardware resources are limited to two SPAN sessions. About access ports 8.3.4. It is not supported for SPAN destination sessions. 9636Q-R line cards. You can configure a SPAN session on the local device only. 9508 switches with 9636C-R and 9636Q-R line cards. EOR switches and SPAN sessions that have Tx port sources. New here? Extender (FEX). slot/port. session-range} [brief ]. command. range} [rx ]}. and stateful restarts. With VLANs or VSANs, all supported interfaces in the specified VLAN or VSAN are included as SPAN sources. All rights reserved. You can configure only one destination port in a SPAN session. VLAN and ACL filters are not supported for FEX ports. 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. multiple UDFs. . This section lists the guidelines and limitations for Cisco Nexus Dashboard Data Broker: . vlan session-number | For SPAN does not support destinations on N9K-X9408PC-CFP2 line card ports. SPAN sources include the following: Ethernet ports offsetSpecifies the number of bytes offset from the offset base. (Otherwise, the slice If you use the specified in the session. type after a Layer 4 header start using the following match criteria: Bytes: Eth Hdr (14) + IP (20) + TCP (20) + Payload: 112233445566DEADBEEF7788, Offset from Layer 4 header start: 20 + 6 = 26, UDF match value: 0xDEADBEEF (split into two-byte chunks and two UDFs). The Cisco Nexus 3048, with its compact one-rack-unit (1RU) form factor and integrated Layer 2 and 3 switching, complements the existing Cisco Nexus family of switches.

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