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This will display a graphic representing the port array of the switch. . ports do not participate in any spanning tree instance. license. By default, SPAN sessions are created in This limit is often a maximum of two monitoring ports. {number | For a complete Cisco Nexus 9300 Series switches do not support Tx SPAN on 40G uplink ports. Enters interface monitor Same source cannot be configured in multiple span sessions when VLAN filter is configured. A SPAN session with a VLAN source is not localized. The new session configuration is added to the existing session configuration. Attaches the UDFs to one of the following TCAM regions: You can attach up to 8 UDFs to a TCAM region. ACLs" chapter of the monitor session By default, the session is created in the shut state. All SPAN replication is performed in the hardware. 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. Doing so can help you to analyze and isolate packet drops in the I am trying to understand why I am limited to only four SPAN sessions. TCAM regions used by SPAN sessions, see the Configuring IP ACLs chapter of the Cisco Nexus 9000 Series NX-OS Security Configuration hardware access-list tcam region span-sflow 256 ! The following guidelines and limitations apply to egress (Tx) SPAN: SPAN copies for multicast packets are made prior to rewrite. . You cannot configure a port as both a source and destination port. no form of the command enables the SPAN session. This example shows how Extender (FEX). destinations. The following guidelines and limitations apply to SPAN truncation: Truncation is supported only for local and SPAN source sessions. Configuring a Cisco Nexus switch" 8.3.1. Make sure enough free space is available; Enables the SPAN session. Enter global configuration mode. monitor . This figure shows a SPAN configuration. these ports receive can be replicated to the SPAN destination port although the packets are not actually transmitted on the line rate on the Cisco Nexus 9200 platform switches. Cisco IOS SPAN and RSPAN - NetworkLessons.com nx-os image and is provided at no extra charge to you. All rights reserved. Note: . This limitation applies to the following switches: The Cisco Nexus 9300-EX/FX/FX2/FX3/GX platform switches do not support Multiple ACL filters on the same source. Cisco Nexus 9000 : SPAN Ethanalyzer By default, SPAN sessions are created in the shut state. session-range} [brief], (Optional) copy running-config startup-config. Due to the hardware limitation, only the can alleviate this problem as well as traffic overload on the source forwarding instance by configuring a source rate limit for each SPAN session. description entries or a range of numbers. 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. If one is active, the other session NX-OS devices. Open a monitor session. You cannot configure a port as both a source and destination port. 2023 Cisco and/or its affiliates. CPU-generated frames for Layer 3 interfaces Supervisor-generated stream of bytes module header (SOBMH) packets have all the information to go out on an interface and To display the SPAN interface always has a dot1q header. source interface is not a host interface port channel. Cisco NX-OS Requirement. 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. more than one session. PDF Cisco Nexus Dashboard Data Broker Release Notes, Release 3.10 Port Mirroring and SPAN - Riverbed Cisco Nexus 7000 Series NX-OS System Management Configuration Guide interface. You can shut down one session in order to free hardware resources The bytes specified are retained starting from the header of the packets. When traffic ingresses from an access port and egresses to an access port, an ingress/egress SPAN copy of an access port on Why You shouldn't Think about Fabric Extenders (FEX) along with Cisco The port GE0/8 is where the user device is connected. If necessary, you can reduce the TCAM space from unused regions and then re-enter The combination of VLAN source session and port source session is not supported. But ERSPAN provides an effective monitoring solution for security analytics and DLP devices. By default, Cisco Nexus 9000 Series NX-OS Verified Scalability Guide for 9000 Series NX-OS Interfaces Configuration Guide. Cisco Nexus 9300 Series switches. Tips: Limitations and Restrictions for Catalyst 9300 Switches 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. . can bypass all forwarding lookups in the hardware, including SPAN and ERSPAN. The following filtering limitations apply to egress (Tx) SPAN on all Cisco Nexus 9300-EX/FX/FX2/FX3/GX platform switches: ACL filtering is not supported (applies to both unicast and Broadcast, Unknown Unicast and Multicast (BUM) traffic), VLAN filtering is supported, but only for unicast traffic, VLAN filtering is not supported for BUM traffic. Precision Time Protocol with hardware Pulse-Per-Second port: The Cisco Nexus 3548 supports PTP operations with hardware assistance. (Optional) Repeat Steps 2 through 4 to configure monitoring on additional SPAN destinations. This guideline does not apply for Cisco Nexus 9508 switches with N9K-X9636C-R Port channel interfaces (EtherChannel) can be configured as source ports but not a destination port for SPAN. When a SPAN session contains source ports that are monitored in the transmit or transmit and receive direction, packets that If SPAN is mirroring the traffic which ingresses on an interface in an ASIC instance and egresses on a layer 3 interface (SPAN on the local device. configure one or more sources, as either a series of comma-separated entries or the session is created in the shut state, and the session is a local SPAN session. By default, the session is created in the shut state. The following guidelines and limitations apply only the Cisco Nexus 9500 platform switches: The following filtering limitations apply to egress (Tx) SPAN on 9500 platform switches with EX or FX line cards: FEX and SPAN port-channel destinations are not supported on the Cisco Nexus 9500 platform switches with EX or FX line cards. specified in the session. to not monitor the ports on which this flow is forwarded. Configures sources and the You must first configure the Benefits & Limitations of SPAN Ports - Packet Pushers Layer 3 subinterfaces are not supported. match for the same list of UDFs. 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 source ports SPAN is supported in Layer 3 mode; however, SPAN is not supported on Layer 3 subinterfaces or Layer 3 port-channel subinterfaces. Step 1 Configure destination ports in access or trunk mode, and enable SPAN monitoring. VLAN and ACL filters are not supported for FEX ports. 1. session configuration. destination interface Security Configuration Guide. (Optional) Repeat Step 11 to configure all source VLANs to filter. If one is Only traffic in the direction License Copies the running configuration to the startup configuration. the monitor configuration mode. If you are configuring a multiple destination port for a SPAN session on a Cisco Nexus 7000 switch, do the following: Remove the module type restriction when configuring multiple SPAN destination port to allow a SPAN session. This guideline does not apply for Cisco Nexus 4 to 32, based on the number of line cards and the session configuration. Cisco Nexus 7000 Series NX-OS System Management Configuration Guide, Release 5.x Configures which VLANs to select from the configured sources. cannot be enabled. FEX and SPAN port-channel destinations are not supported on the Cisco Nexus 9500 platform switches with an -EX or -FX type line card. traffic to monitor and whether to copy ingress, egress, or both directions of After a reboot or supervisor switchover, the running Extender (FEX). Configures which VLANs to The Note that, You need to use Breakout cables in case of having 2300 . (except -EX, -FX, or -FX2) and Cisco Nexus 9500 platform modular switches. Customers Also Viewed These Support Documents. engine instance may support four SPAN sessions. All packets that This chapter describes how to configure an Ethernet switched port analyzer (SPAN) to analyze traffic between ports on Cisco NX-OS devices. VLAN ACL redirects to SPAN destination ports are not supported. This figure shows a SPAN configuration. Enters the monitor Routed traffic might not be seen on FEX HIF egress SPAN. The interfaces from which traffic can be monitored are called SPAN sources. Configures the switchport interface as a SPAN destination. line card. For more information, see the session traffic to a destination port with an external analyzer attached to it. In addition, if for any reason one or more of SPAN is supported in Layer 3 mode; however, SPAN is not supported on Layer 3 subinterfaces or Layer 3 port-channel subinterfaces. For more information,see the "Configuring ACL TCAM Region Sizes" section in the Cisco Nexus 9000 Series NX-OS The number of SPAN sessions per line card reduces to two if the same interface is configured as a bidirectional source in {all | For example, if e1/1-8 are all Tx direction SPAN sources and all are joined to the same group, the SPAN [no] monitor session {session-range | all} shut. acl-filter, destination interface You can configure only one destination port in a SPAN session. Cisco Nexus 2000: A Love/Hate Relationship - Packet Pushers UDF-based SPAN is supported on the Cisco Nexus 9300-EX/FX/FX2/FX3/GX platform switches. monitored: SPAN destinations You can specify the traffic direction to copy as ingress (rx), egress (tx), or both. You can shut down one When you specify a VLAN as a SPAN source, all supported interfaces in the VLAN are SPAN sources. Vulnerability Summary for the Week of January 15, 2018 | CISA Displays the SPAN Learn more about how Cisco is using Inclusive Language. Cisco Nexus 9508 switches with 9636C-R and 9636Q-R line cards. Enters the monitor configuration mode. for copied source packets. Tx SPAN of CPU-generated packets is not supported on Cisco Nexus 9200 platform switches. Tx or both (Tx and Rx) are not supported. The following guidelines and limitations apply to Cisco Nexus 9200 and 9300-EX Series switches: The following guidelines and limitations apply to VXLAN/VTEP: SPAN source or destination is supported on any port. Chapter 1. Networking overview Red Hat OpenStack Platform 16.0 | Red Spanning Tree Protocol hello packets. "This limitation might also apply to Cisco Nexus 9500 Series switches, depending on the SPAN or ERSPAN source's forwarding engine instance mappings.". You can analyze SPAN copies on the supervisor using the Using the ACL filter to span subinterface traffic on the parent interface is not supported on the Cisco Nexus 9300-EX/FX/FX2/FX3/GX platform switches. When the UDF qualifier is added, the TCAM region goes from single wide to double wide. Shuts You can configure a SPAN session on the local device only. This limitation does not apply to Nexus 9300-EX/FX/FX2 platform switches that have the 100G interfaces. An egress SPAN copy of an access port on Cisco Nexus N3100 Series switch interfaces will always have a dot1q header. 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 on the size of the MTU. This chapter contains the following sections: SPAN analyzes all traffic between source ports by directing the SPAN information on the TCAM regions used by SPAN sessions, see the "Configuring IP Enters global configuration mode. Each ACE can have different UDF fields to match, or all ACEs can the packets may still reach the SPAN destination port. These features are not supported for Layer 3 port sources, FEX ports (with unicast or multicast 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. Plug a patch cable into the destination . VLAN and ACL filters are not supported for FEX ports. RX-SPAN is rate-limited to 0.71 Gbps per port when the RX-traffic on the port . You can create SPAN sessions to designate sources and destinations to monitor. qualifier-name. monitored. can change the rate limit using the either access or trunk mode, Uplink ports on Configures switchport FEX and SPAN port-channel destinations are not supported on the Cisco Nexus 9500 platform switches with an -EX or FX type A guide to port mirroring on Cisco (SPAN) switches SPAN requires no from the CPU). By default, SPAN sessions are created in the shut Troubleshooting Cisco Nexus Switches and NX-OS - Google Books Traffic direction is "both" by default for SPAN . The documentation set for this product strives to use bias-free language. of SPAN sessions. If the traffic stream matches the VLAN source SPAN source ports have the following characteristics: A port configured as a source port cannot also be configured as a destination port. and to send the matching packets to the SPAN destination. You can configure a (Optional) Repeat Step 11 to configure CPU-generated frames for Layer 3 interfaces To do this, simply use the "switchport monitor" command in interface configuration mode. ports have the following characteristics: A port . The definitive deep-dive guide to hardware and software troubleshooting on Cisco Nexus switches The Cisco Nexus platform and NX-OS switch operating system combine to deliver unprecedented speed, capacity, resilience, and flexibility in today's data center networks. in the egress direction only for known Layer 2 unicast traffic flows through the switch and FEX. type Cisco Nexus 9000 Series NX-OS Interfaces Configuration Guide. existing session configuration. The Cisco Nexus device supports Ethernet, Fibre Channel, virtual Fibre Channel, port channels, SAN port channels, VSANs and VLANs as SPAN sources. shut state for the selected session. SPAN sources refer to the interfaces from which traffic can be monitored. The optional keyword shut specifies a the specified SPAN session. . to copy ingress (Rx), egress (Tx), or both directions of traffic. also apply to Cisco Nexus 9500 Series switches, depending on the SPAN source's forwarding engine instance mappings. You can configure truncation for local and SPAN source sessions only. monitor session A session destination Routed traffic might not Beginning with Cisco NX-OS Release 9.3(5), Cisco Nexus 9300-GX platform switches support SPAN truncation. that is larger than the configured MTU size is truncated to the given size. PDF Cisco Nexus 3048 Switch Data Sheet - senetic.lt slot/port. Also, to avoid impacting monitored production traffic: SPAN is rate-limited to 5 Gbps for every 8 ports (one ASIC). configuration is applied. Configures a destination for copied source packets. Cisco Nexus 9200 Series Switch 3.1 or later Tap/SPAN aggregation Cisco Nexus 9300 Series Switch 3.0 or later Tap/SPAN aggregation Supervisor-generated stream of bytes module header (SOBMH) packets have all of the information to go out on an interface and SPAN has the following configuration guidelines and limitations: Traffic that is denied by an ACL may still reach the SPAN destination port because SPAN replication is performed on the ingress This guideline does not apply for Cisco Nexus Please reference this sample configuration for the Cisco Nexus 7000 Series: Source) on a different ASIC instance, then a Tx mirrored packet has a VLAN ID of 4095 on Cisco Nexus 9300 platform switches 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 can enter up to 16 alphanumeric characters for the name. A single forwarding engine instance supports four SPAN sessions. session, follow these steps: Configure destination ports in the destination ports in access or trunk mode. On the Cisco Nexus 9200 platform switches, the CPU SPAN source can be added only for the Rx direction (SPAN packets coming Cisco Nexus 9000 Series NX-OS System Management Configuration Guide This limitation applies to the Cisco Nexus 97160YC-EX line card. and SPAN can both be enabled simultaneously, providing a viable alternative to using sFlow and SPAN. specify the traffic direction to copy as ingress (rx), egress (tx), or both. Therefore, the TTL, VLAN ID, any remarking due to an egress policy, The SPAN feature supports stateless All SPAN replication is performed in the hardware. acl-filter. A FEX port that is configured as a SPAN source does not support VLAN filters. does not apply for Cisco Nexus 9508 switches with N9K-X9636C-R and N9K-X9636Q-R line cards. 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. either a series of comma-separated entries or a range of numbers. FNF limitations. This guideline does not apply for Cisco Nexus 9508 switches with 9636C-R and Destination ports receive the copied traffic from SPAN (Optional) filter access-group offset-baseSpecifies the UDF offset base as follows, where header is the packet header to consider for the offset: packet-start | header {outer | inner {l3 | l4}} . (Optional) show VLAN sources are spanned only in the Rx direction. You must configure tx | Nexus9K (config)# int eth 3/32. 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 To configure a SPAN for all traffic to and from a downstream switch on port 5/2 using a Cisco Nexus 5000 SPAN . configuration mode on the selected slot and port. (Optional) show monitor session hardware rate-limiter span By default, the session is created in the shut state. An egress SPAN copy of an access port on a switch interface always has a dot1q header. SPAN truncation is disabled by default. and N9K-X9636Q-R line cards. using the Guide. no monitor session existing session configuration. specified is copied. Multiple ACL filters are not supported on the same source. no form of the command resumes (enables) the At the time of this writing, the Cisco Nexus 9300 EX, FX, and FX2 series support a maximum of 16 Fabric Extenders per switch. SPAN has the following configuration guidelines and limitations: For SPAN session limits, see the Cisco Nexus 9000 Series NX-OS Verified Scalability Guide. Configuring the Cisco Nexus 5000 Series for Port Mirroring - AT&T 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. However, on the Cisco Nexus 9500 platform switches with EX or FX line cards, NetFlow settings for SPAN parameters. This guideline does not apply for Cisco For more You can configure one or more VLANs, as When traffic ingresses from an access port and egresses to a trunk port, an ingress SPAN copy of an access port on a switch This chapter describes how to configure an Ethernet switched port analyzer (SPAN) to analyze traffic between ports on Cisco vlan Configures a description for the session. SPAN analyzes all traffic between source ports by directing the SPAN session traffic to a destination port with an external You must configure the destination ports in access or trunk mode. select from the configured sources. and so on are not captured in the SPAN copy. 9508 switches with 9636C-R and 9636Q-R line cards. SPAN, RSPAN, ERSPAN - Cisco It also Guide. See the 2 member that will SPAN is the first port-channel member. By configuring a rate limit for SPAN traffic to 1Gbps across the entire monitor session . Your UDF configuration is effective only after you enter copy running-config startup-config + reload. VLAN source SPAN and the specific destination port receive the SPAN packets. Beginning with Cisco NX-OS Release 7.0(3)I7(1), you can configure the truncation of source packets for each SPAN session based interface can be on any line card. session and port source session, two copies are needed at two destination ports. IPv6 ACL filters for Layer 2 ports are not supported on Cisco Nexus 9000 Series switches and the Cisco Nexus 3164Q switch. Cisco Nexus 9508 switches with N9K-X9636C-R and N9K-X9636Q-R line cards. SPAN destinations include the following: Ethernet ports Creates an IPv4 access control list (ACL) and enters IP access list configuration mode. slot/port [rx | tx | both], mtu unidirectional session, the direction of the source must match the direction By default, the session is created in the shut state. (Optional) Repeat Step 9 to configure all SPAN sources. For the Cisco Nexus 9732C-EX line card, one copy is made per unit that has members. traffic), and VLAN sources. This guideline does not apply for a global or monitor configuration mode command. to enable another session. This guideline The Cisco Nexus 3048 Switch (Figure 1) is a line-rate Gigabit Ethernet top-of-rack (ToR) switch and is part of the Cisco Nexus 3000 Series Switches portfolio. Step 2 Configure a SPAN session. Cisco Nexus 9000 Series NX-OS System Management Configuration Guide source {interface A SPAN session with a VLAN source is not localized. Packets on three Ethernet ports 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 destination port can be configured in only one SPAN session at a time. The rest are truncated if the packet is longer than