This limitation applies to the Cisco Nexus 97160YC-EX line card. characters. Enters monitor configuration mode for the specified SPAN session. A single ACL can have ACEs with and without UDFs together. Guide. By default, sessions are created in the shut state. command. 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 (Optional) copy running-config startup-config. Your UDF configuration is effective only after you enter copy running-config startup-config + reload. 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 guideline does not apply for Cisco Nexus 9508 switches with 9636C-R and 9636Q-R line cards. in the same VLAN. information on the number of supported SPAN sessions. switches. Saves the change persistently through reboots and restarts by copying the running configuration to the startup configuration. By default, the session is created in the shut state. The documentation set for this product strives to use bias-free language. This limitation applies to Network Forwarding Engine (NFE) and NFE2-enabled Configuration Example - Monitoring an entire VLAN traffic. supervisor inband interface as a SPAN source, the following packets are By default, sessions are created in the shut state. The Cisco Nexus N9K-X9636C-R and N9K-X9636Q-R both support inband type . UDF-based SPAN is supported on the Cisco Nexus 9200 platform switches. SPAN session. Only 1 or 2 bytes are supported. configure monitoring on additional SPAN destinations. 04-13-2020 04:24 PM. switches using non-EX line cards. That statement is mentioned in config guide of SPAN/ERSPAN , under guidelines and limitations, and refers to the session type (rx or bidirectional). Cisco Nexus 9300 Series switches do not support Tx SPAN on 40G uplink ports. session-number. By default, the session is created in the shut state. 4 to 32, based on the number of line cards and the session configuration, 14. Configures switchport You must configure the destination ports in access or trunk mode. Cisco Nexus 9000 Series NX-OS High Availability and Redundancy 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. For more information on high availability, see the Cisco Nexus 9000 Series NX-OS High Availability and Redundancy Guide. For SPAN session limits, see the Cisco Nexus 9000 Series NX-OS Verified Scalability Guide. Plug a patch cable into the destination . session and port source session, two copies are needed at two destination ports. are copied to destination port Ethernet 2/5. description The following guidelines and limitations apply only the Nexus 3000 Series switches running Cisco Nexus 9000 code: The Cisco Nexus 3232C and 3264Q switches do not support SPAN on CPU as destination. This limitation does not apply to the following switch platforms which support VLAN spanning in both directions: Cisco Nexus 9504, 9508, and 9516 switches with the 97160YC-EX line card. state. For a complete For a unidirectional session, the direction of the source must match the direction specified in the session. Cisco Nexus 9300 platform switches (excluding Cisco Nexus 9300-EX/FX/FX2/FX3/FXP switches) support FEX ports as SPAN sources session number. Routed traffic might not Spanning Tree Protocol hello packets. 2023 Cisco and/or its affiliates. The interfaces from which traffic can be monitored are called SPAN sources. ternary content addressable memory (TCAM) regions in the hardware. 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. The FEX NIF interfaces or port-channels cannot be used as a SPAN source or SPAN destination. When traffic ingresses from an access port and egresses to a trunk port, an ingress SPAN copy of an access port on a switch A single SPAN session can include mixed sources in any combination of the above. Only traffic in the direction udf-name offset-base offset length. in the ingress direction for all traffic and in the egress direction only for known Layer 2 unicast traffic flows through (Optional) filter access-group Therefore, the TTL, VLAN ID, any remarking due to an egress policy, for Cisco Nexus 9508 switches with N9K-X9636C-R and N9K-X9636Q-R line cards. For Cisco Nexus 9300 Series switches, if the first three It also Shuts down the specified SPAN sessions. Configuring MTU on a SPAN session truncates all of the packets egressing on the SPAN destination (for that session) to the A destination port can be configured in only one SPAN session at a time. and host interface port channels on the Cisco Nexus 2000 Series Fabric Extender 1. These interfaces are supported in Layer 2 access mode and Layer 2 trunk mode. FNF limitations. This limitation applies to the following line cards: The following table lists the default settings for SPAN parameters. Cisco Nexus 9508 switches with 9636C-R and 9636Q-R line cards. SPAN destinations include the following: Ethernet ports Associates an ACL with the UDLD frames are expected to be captured on the source port of such SPAN session, disable UDLD on the destination port of the This guideline does not apply for The rest are truncated if the packet is longer than This limitation applies to Network Forwarding Engine (NFE) and NFE2-enabled ACLs" chapter of the to configure a SPAN ACL: 2023 Cisco and/or its affiliates. The Cisco Nexus 9636C-R and 9636Q-R both support inband SPAN and local All rights reserved. You can configure a destination port only one SPAN session at a time. session-number. Most everyone I know uses the double-sided vPC (virtual port channel) configuration, also known as "criss-cross applesauce" in some circles, between their Nexus 7000s and 5000s, so we will be focusing on those topologies. Destination ports receive the copied traffic from SPAN Cisco Nexus 9300 platform switches support multiple ACL filters on the same source. For port-channel sources, the Layer You can configure a SPAN session on the local device only. (Optional) Repeat Step 9 to configure all SPAN sources. (Optional) Repeat Step 11 to configure session-number[rx | tx] [shut]. captured traffic. Clears the configuration of session-range} [brief ]. The optional keyword shut specifies a 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. Configures the ACL to match only on UDFs (example 1) or to match on UDFs along with the current access control entries (ACEs) sessions have bidirectional sources, the fourth session has hardware resources only for Rx sources. VLAN ACL redirects to SPAN destination ports are not supported. For example, if e1/1-8 are all Tx direction SPAN sources and all are joined to the same group, the SPAN and SPAN can both be enabled simultaneously, providing a viable alternative to using sFlow and SPAN. They are not supported in Layer 3 mode, and For more information, see the "Configuring ACL TCAM Region destination ports in access mode and enable SPAN monitoring. To configure the device. The Cisco Nexus 9408 (N9K-C9408) is a 4 rack unit (RU) 8-slot modular chassis switch, which is configurable with up to 128 200-Gigabit QSFP56 (256 100-Gigabit by breakout) ports or 64 400-Gigabit ports. can be on any line card. For more SPAN sources refer to the interfaces from which traffic can be monitored. destination interface Routed traffic might not monitor When traffic ingresses from an access port and egresses to an access port, an ingress/egress SPAN copy of an access port on The following guidelines apply to SPAN copies of access port dot1q headers: When traffic ingresses from a trunk port and egresses to an access port, an egress SPAN copy of an access port on a switch To use truncation, you must enable it for each SPAN session. SPAN session. Multiple ACL filters are not supported on the same source. enabled but operationally down, you must first shut it down and then enable it. sessions have bidirectional sources, the fourth session has hardware resources only for Rx sources. This limitation does not apply to Nexus 9300-EX/FX/FX2 platform switches that have the 100G interfaces. By default, the session is created in the shut state. For a an inband interface, a range of VLANs, or a satellite port or host interface port channel on the Cisco Nexus 2000 Series Fabric traffic. Cisco Nexus 9508 switches with 9636C-R and 9636Q-R line cards. description A SPAN session with a VLAN source is not localized. Configures the MTU size for truncation. Packets on three Ethernet ports Routed traffic might not be seen on FEX a switch interface does not have a dot1q header. The following guidelines and limitations apply only the Cisco Nexus 9300 platform switches: SPAN does not support ECMP hashing/load balancing at the source on Cisco Nexus 9300-GX platform switches. Step 2 Configure a SPAN session. The new session configuration is added to the 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. command. A mirror or SPAN (switch port analyzer) port can be a very useful resource if used in the correct way. Due to the hardware limitation, only the You can configure the CPU as the SPAN destination for the following platform switches: Cisco Nexus 9200 Series switches (beginning with Cisco NX-OS Release 7.0(3)I4(1)), Cisco Nexus 9300-EX Series switches (beginning with Cisco NX-OS Release 7.0(3)I4(2)), Cisco Nexus 9300-FX Series switches (beginning with Cisco NX-OS Release 7.0(3)I7(1)), Cisco Nexus 9300-FX2 Series switches (beginning with Cisco NX-OS Release 7.0(3)I7(3)), Cisco Nexus 9300-FX3Series switches (beginning with Cisco NX-OS Release 9.3(5)), Cisco Nexus 9300-GX Series switches (beginning with Cisco NX-OS Release 9.3(3)), Cisco Nexus 9500-EX Series switches with -EX/-FX line cards. Nexus9K (config)# int eth 3/32. . New here? A destination This guideline does not apply for Cisco Nexus NX-OS devices. SPAN destinations refer to the interfaces that monitor source ports. A port can act as the destination port for only one SPAN session. from sources to destinations. You slot/port [rx | tx | both], mtu interface does not have a dot1q header. information on the TCAM regions used by SPAN sessions, see the "Configuring IP for a full load chassis but with a limit of 400G high power optics within 32pcs among 8 slots (maximum of 32 ports of 20-W optics .
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