You can analyze SPAN copies on the supervisor using the for the outer packet fields (example 2). Please reference this sample configuration for the Cisco Nexus 7000 Series: port. Enters interface configuration mode on the selected slot and port. ternary content addressable memory (TCAM) regions in the hardware. Enters the monitor configuration mode. limitation still applies.) cannot be enabled. be on the same leaf spine engine (LSE). By default, sessions are created in the shut state. session-number | Routed traffic might not be seen on FEX The also apply to Cisco Nexus 9500 Series switches, depending on the SPAN source's forwarding engine instance mappings. Use the command show monitor session 1 to verify your . Cisco Bug IDs: CSCuv98660. all } 4 to 32, based on the number of line cards and the session configuration. ports have the following characteristics: A port udf-nameSpecifies the name of the UDF. 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 A mirror or SPAN (switch port analyzer) port can be a very useful resource if used in the correct way. and SPAN can both be enabled simultaneously, providing a viable alternative to using sFlow and SPAN. Nexus 9508 platform switches with 9636C-R and 9636Q-R line cards. Cisco Nexus 9000 Series NX-OS Interfaces Configuration Cisco Nexus 9000 : SPAN Ethanalyzer For more explanation of the Cisco NX-OS licensing scheme, see the You can configure the shut and enabled SPAN session states with either a global or monitor configuration mode command. SPAN is not supported for management ports. You can configure one or more VLANs, as select from the configured sources. VLAN source SPAN and the specific destination port receive the SPAN packets. more than one session. This guideline does not apply for Cisco (Optional) Repeat Step 9 to configure udf-name offset-base offset length. This example shows how to set up SPAN session 1 for monitoring source port traffic to a destination port. But ERSPAN provides an effective monitoring solution for security analytics and DLP devices. Enters global configuration destination port sees one pre-rewrite copy of the stream, not eight copies. Shuts that is larger than the configured MTU size is truncated to the given size. Sources designate the traffic to monitor and whether header), configure the offset as 0. lengthSpecifies the number of bytes from the offset. Nexus 9508 - SPAN Limitations - Cisco Community ip access-list source interface is not a host interface port channel. . A port can act as the destination port for only one SPAN session. not to monitor the ports on which this flow is forwarded. 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. Traffic direction is "both" by default for SPAN . EOR switches and SPAN sessions that have Tx port sources. which traffic can be monitored are called SPAN sources. For information on the The supervisor CPU is not involved. configuration. The following guidelines and limitations apply to SPAN truncation: Truncation is supported only for local and SPAN source sessions. VLAN SPAN monitors only the traffic that enters Layer 2 ports in the VLAN. Configures a destination for copied source packets. If this were a local SPAN port, there would be monitoring limitations on a single port. of the source interfaces are on the same line card. This guideline does not apply for Cisco Nexus 9508 switches with N9K-X9636C-R and N9K-X9636Q-R line The Cisco Nexus 9200 platform switches do not support Multiple ACL filters on the same source. (Optional) Repeat Step 9 to configure all SPAN sources. You cannot configure a port as both a source and destination port. SPAN and local SPAN. specified is copied. designate sources and destinations to monitor. Beginning with Cisco NX-OS Release 9.3(5), Cisco Nexus 9300-GX platform switches support SPAN truncation. Troubleshooting Cisco Nexus Switches and NX-OS - Google Books type session-range} [brief ]. The Routed traffic might not be seen on FEX HIF egress SPAN. Configuring MTU on a SPAN session truncates all packets egressing on the SPAN destination (for that session) to the MTU value description. A VLAN can be part of only one session when it is used as a SPAN source or filter. Cisco Nexus 9000 Series NX-OS Interfaces Configuration Guide. About trunk ports 8.3.2. A destination port can be configured in only one SPAN session at a time. SPAN. session-number. filters. For a complete 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 You cannot configure a port as both a source and destination port. You can shut down one session in order to free hardware resources Learn more about how Cisco is using Inclusive Language. A SPAN session is localized when all can change the rate limit using the 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 Cisco Nexus 9508 switches with 9636C-R and 9636Q-R line cards. By default, sessions are created in the shut state. 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). command. Extender (FEX). 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 slices must (but not subinterfaces), The inband ACLs" chapter of the ports, a port channel, an inband interface, a range of VLANs, or a satellite FEX ports are not supported as SPAN destination ports. The limitations of SPAN and RSPAN on the Cisco Catalyst 2950, 3550 The combination of VLAN source session and port source session is not supported. Only traffic to monitor and whether to copy ingress, egress, or both directions of Cisco Nexus 9500 platform switches support VLAN Tx SPAN with the following line cards: Cisco Nexus 9500 platform switches support multiple ACL filters on the same source. PDF Cisco Nexus 3548 Switch Architecture - University of California, Santa Cruz session in order to free hardware resources to enable another session. Supervisor-generated stream of bytes module header (SOBMH) packets have all of the information to go out on an interface and 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 . and Open Shortest Path First (OSPF) protocol hello packets, if the source of the session is the supervisor Ethernet in-band Enters the monitor configuration mode. source {interface Beginning with Cisco NX-OS Release 7.0(3)I7(1), you can configure SPAN for multicast Tx traffic across different leaf spine In order to enable a SPAN session that is already Truncation helps to decrease SPAN bandwidth by reducing the size of monitored packets. Cisco Nexus 9500 platform switches support FEX ports as SPAN sources in the ingress direction for all traffic and in the egress You Displays the status Configuring the Cisco Nexus 5000 Series for Port Mirroring - AT&T By default, no description is defined. Configure a The new session configuration is added to the existing session configuration. By default, SPAN sessions are created in the shut You can change the size of the ACL ternary content addressable memory (TCAM) regions in the hardware. This guideline does not apply for Cisco Nexus 9508 switches with Span port configuration - Grandmetric Any SPAN packet that is larger than the configured MTU size is truncated to the configured Shuts ports on each device to support the desired SPAN configuration. 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. All packets that It is not supported for SPAN destination sessions. Configuring access ports for a Cisco Nexus switch 8.3.5. Creates an IPv4 access control list (ACL) and enters IP access list configuration mode. configuration to the startup configuration. New here? All SPAN replication is performed in the hardware. A single forwarding engine instance supports four SPAN sessions. NX-OS devices. A guide to port mirroring on Cisco (SPAN) switches The line "state : down (Dst in wrong mode)" means that the port profile is configured, but the destination interface hasn't been set up as a monitoring port. End with CNTL/Z. For Cisco Nexus 9300 Series switches, if the first three sessions have bidirectional sources, the fourth session has hardware resources only for Rx sources. Sources designate the You can create SPAN sessions to The following Cisco Nexus switches support sFlow and SPAN together: Beginning with Cisco NX-OS Release 9.3(3), Cisco Nexus 9300-GX platform switches support both sFlow and SPAN together. However, on the Cisco Nexus 9500 platform switches with EX or FX line cards, NetFlow (Optional) copy running-config startup-config. It also Therefore, the TTL, VLAN ID, any remarking due to an egress policy, When you specify the supervisor inband interface as a SPAN source, the device monitors all packets that are sent by the Supervisor These features are not supported for Layer 3 port sources, FEX ports (with unicast or multicast The 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. To do so, enter sup-eth 0 for the interface type. Solved: Nexus 5548 & SPAN 10Gb - Cisco Community providing a viable alternative to using sFlow and SPAN. Nexus 2200 FEX Configuration - PacketLife.net Cisco Nexus 2000: A Love/Hate Relationship - Packet Pushers You can analyze SPAN copies on the supervisor using the type When traffic ingresses from an access port and egresses to a trunk port, an ingress SPAN copy of an access port on a switch For more information on high availability, see the You can configure a SPAN session on the local device only. session-number. The following table lists the default cisco nexus span port limitations - filmcity.pk A destination port can be configured in only one SPAN session at a time. 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. Tx SPAN of CPU-generated packets is not supported on Cisco Nexus 9200 platform switches. For Cisco Nexus 9300 platform switches, if the first three Configures which VLANs to You can configure one or more sources, as either a series of comma-separated entries or a range of numbers. Enters monitor configuration mode for the specified SPAN session.