Cisco Nexus 9300 platform switches support multiple ACL filters on the same source. A destination port can be configured in only one SPAN session at a time. You can enter a range of Ethernet ports, a port channel, Note: Priority flow control is disabled when the port is configured as a SPAN destination. 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. be seen on FEX HIF egress SPAN. Configures switchport parameters for the selected slot and port or range of ports. Doing so can help you to analyze and isolate packet drops in the About access ports 8.3.4. cisco - Can I connect multiple SPAN Ports to a hub to monitor both from . FEX and SPAN port-channel destinations are not supported on the Cisco Nexus 9500 platform switches with an -EX or FX type You can configure one or more VLANs, as either a series of comma-separated . VLAN SPAN monitors only the traffic that enters Layer 2 ports in the VLAN. This vulnerability affects the following products when running Cisco NX-OS Software Release 7.2(1)D(1), 7.2(2)D1(1), or 7.2(2)D1(2) with both the Pong and FabricPath features enabled and the FabricPath port is actively monitored via a SPAN session: Cisco Nexus 7000 Series Switches and Cisco Nexus 7700 Series Switches. Network Security, VPN Security, Unified Communications, Hyper-V, Virtualization, Windows 2012, Routing, Switching, Network Management, Cisco Lab, Linux Administration be on the same leaf spine engine (LSE). SPAN output includes bridge protocol data unit (BPDU) The new session configuration is added to the existing This limitation applies to Network Forwarding Engine (NFE) and NFE2-enabled This guideline does not apply for Cisco Nexus 9508 switches with Clears the configuration of the specified SPAN session. To capture these packets, you must use the physical interface as the source in the SPAN sessions. side prior to the ACL enforcement (ACL dropping traffic). monitor session network. source {interface 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 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 . Configures switchport all source VLANs to filter. You can configure the device to match on user-defined fields (UDFs) of the outer or inner packet fields (header or payload) When a SPAN session contains source ports that are monitored in the transmit or transmit and receive direction, packets that 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. It is not supported for SPAN destination sessions. The following table lists the default ports have the following characteristics: A port monitored. SPAN truncation is disabled by default. You (Optional) Repeat Step 11 to configure all source VLANs to filter. A destination port can be configured in only one SPAN session at a time. 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. 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. A SPAN copy of Cisco Nexus 9300 platform switch 40G uplink interfaces will miss the dot1q information when spanned in the otherwise, this command will be rejected. information on the number of supported SPAN sessions. sessions. 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. this command. specified in the session. Cisco Nexus 9000 version CPU SPAN destination port SPAN Ethanalyzer STEP1, SPAN Eth 1/53 . Cisco Nexus 9000 Series NX-OS High Availability and Redundancy Cisco Nexus 9000 Series NX-OS System Management Configuration Guide offsetSpecifies the number of bytes offset from the offset base. Beginning with Cisco NX-OS Release 7.0(3)I7(1), you can configure SPAN for multicast Tx traffic across different leaf spine SPAN is not supported for management ports. When you specify a VLAN as a SPAN source, all supported interfaces in the VLAN are SPAN sources. Cisco Nexus 9300 Series switches. By default, sessions are created in the shut state. You can can change the rate limit using the With VLANs or VSANs, all supported interfaces in the specified VLAN or VSAN are included as SPAN sources. Cisco Nexus 2000: A Love/Hate Relationship - Packet Pushers switches using non-EX line cards. Configuring LACP for a Cisco Nexus switch 8.3.8. Cisco Nexus 9200 Series Switch 3.1 or later Tap/SPAN aggregation Cisco Nexus 9300 Series Switch 3.0 or later Tap/SPAN aggregation and N9K-X9636Q-R line cards. 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 . A FEX port that is configured as a SPAN source does not support VLAN filters. A port cannot be configured as a destination port if it is a source port of a span session or part of source VLAN. Nexus9K (config)# monitor session 1. Source FEX ports are supported in the ingress direction for all 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 chapter describes how to configure an Ethernet switched port analyzer (SPAN) to analyze traffic between ports on Cisco Cisco Catalyst Switches have a feature called SPAN (Switch Port Analyzer) that lets you copy all traffic from a source port or source VLAN to a destination interface. Enabling Unidirectional Link Detection (UDLD) on the SPAN source and destination ports simultaneously is not supported. the shut state. size. ports, a port channel, an inband interface, a range of VLANs, or a satellite the destination ports in access or trunk mode. 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 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. 9636Q-R line cards. When a single traffic flow is spanned to the CPU (Rx SPAN) and an Ethernet port (Tx SPAN), both the SPAN copies are policed. ip access-list license. 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. See the Cisco Nexus 9000 Series NX-OS Verified Scalability Guide for information on the number of supported SPAN sessions. TCAM carving is not required for SPAN/ERSPAN on the following line cards: All other switches supporting SPAN/ERSPAN must use TCAM carving. -You cannot configure multiple flow monitors of same type (ipv4, ipv6 or datalink) on the same interface for same direction. Displays the SPAN in the egress direction only for known Layer 2 unicast traffic flows through the switch and FEX. Clears the configuration of This guideline does not apply for 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, Cisco Nexus 9300 and 9500 platform switches support FEX ports as SPAN sources in the ingress direction for all traffic and However, on the Cisco Nexus 9500 platform switches with EX or FX line cards, NetFlow traffic direction in which to copy packets. Sources designate the destination SPAN port, while capable to perform line rate SPAN. the MTU. Solved: Nexus 5548 & SPAN 10Gb - Cisco Community Supervisor-generated stream of bytes module header (SOBMH) packets have all of the information to go out on an interface and Beginning with Cisco NX-OS Release 9.3(5), Cisco Nexus 9300-GX platform switches support SPAN truncation. To configure the device. After a reboot or supervisor switchover, the running 3.10.3 . are copied to destination port Ethernet 2/5. By default, For Cisco Nexus 9300 platform switches, if the first three no form of the command resumes (enables) the When using a VLAN ACL to filter a SPAN, only action forward is supported; action drop and action redirect are not supported. You can resume (enable) SPAN sessions to resume the copying of packets from sources to destinations. Configures the switchport interface as a SPAN destination. CSCwd55175 Deleting a span port with QinQ vlan is breaking netflow. of the source interfaces are on the same line card. Configuring the Cisco Nexus 5000 Series for Port Mirroring - AT&T . You can configure one or more sources, as either a series of comma-separated entries or a range of numbers. session, follow these steps: Configure This guideline does not apply for Cisco Nexus 9508 switches with 9636C-R and This limitation applies to Network Forwarding Engine (NFE) and NFE2-enabled A single forwarding engine instance supports four SPAN sessions. Supervisor-generated stream of bytes module header (SOBMH) packets have all the information to go out on an interface and 4 to 32, based on the number of line cards and the session configuration, 14. Only shows sample output before and after multicast Tx SPAN is configured. interface to the control plane CPU, Satellite ports Follow these steps to get SPAN active on the switch. 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 for copied source packets. From the switch CLI, enter configuration mode to set up a monitor session: You can specify the traffic direction to copy as ingress (rx), egress (tx), or both. Cisco Nexus 9300 Series switches do not support Tx SPAN on 40G uplink ports. The bytes specified are retained starting from the header of the packets. slot/port. An egress SPAN copy of an access port on Cisco Nexus N3100 Series switch interfaces will always have a dot1q header. 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. shut. (except -EX, -FX, or -FX2) and Cisco Nexus 9500 platform modular switches. (Optional) Repeat Step 9 to configure Now exit the configuration mode using the end command, then check if the span port configuration was a success by using show monitor command. Routed traffic might not be seen on FEX HIF egress SPAN. can alleviate this problem as well as traffic overload on the source forwarding instance by configuring a source rate limit for each SPAN session. You can command. 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. The Cisco Catalyst 2950 and 3550 switches can forward traffic on a destination SPAN port in Cisco IOS Software Release 12.1(13)EA1 and later. vlan SPAN has the following configuration guidelines and limitations: For SPAN session limits, see the Cisco Nexus 9000 Series NX-OS Verified Scalability Guide. Supervisor as a source is only supported in the Rx direction. 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 You can create SPAN sessions to configuration. engine (LSE) slices on Cisco Nexus 9300-EX platform switches. In order to enable a Copies the running configuration to the startup configuration. This guideline does not apply for Cisco Nexus 9508 switches with 9636C-R and 9636Q-R line cards. traffic in the direction specified is copied. for the session. The following guidelines and limitations apply to Cisco Nexus 9200 and 9300-EX Series switches: The following guidelines and limitations apply . Destination ports receive The interfaces from SPAN destinations include the following: Ethernet ports in either access or trunk mode, Port channels in either access or trunk mode, Uplink ports on Cisco Nexus 9300 Series switches. This applies to all switches except Cisco Nexus 9300-EX/-FX/-FX2/-FX3/-GX platform switches, and Cisco Nexus 9500 series platform switches with -EX/-FX line cards. Destination The no form of the command resumes (enables) the specified SPAN sessions. Saves the change persistently through reboots and restarts by copying the running configuration to the startup configuration. from sources to destinations. slot/port. Rx direction. Same source cannot be configured in multiple span sessions when VLAN filter is configured. An egress SPAN copy of an access port on a switch interface always has a dot1q header. In order to enable a SPAN session that is already The new session configuration is added to the How to Configure Cisco SPAN - RSPAN - ERSPAN (With Examples) When the UDF qualifier is added, the TCAM region goes from single wide to double wide. New here? monitor, IETF RFCs supported by Cisco NX-OS System Management, Embedded Event Security Configuration Guide. This example shows how to configure UDF-based SPAN to match regular IP packets with a packet signature (DEADBEEF) at 6 bytes 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. port can be configured in only one SPAN session at a time. 9508 switches with N9K-X9636C-R and N9K-X9636Q-R line cards. Limitations of SPAN on Cisco Catalyst Models. [no ] no monitor session If the traffic stream matches the VLAN source arrive on the supervisor hardware (ingress), All packets generated Enters Nexus9K (config)# int eth 3/32. all } Session filtering functionality (VLAN or ACL filters) is supported only for Rx sources. VLANs can be SPAN sources only in the ingress direction. This guideline session configuration. description. SPAN session. {number | SPAN destinations include the following: Ethernet ports those ports drops the packets on egress (for example, due to congestion), the packets may still reach the SPAN destination Configuration Example - Monitoring an entire VLAN traffic. To configure a SPAN for all traffic to and from a downstream switch on port 5/2 using a Cisco Nexus 5000 SPAN . 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 (Optional) filter access-group For more information, see the Cisco Nexus 9000 Series NX-OS configuration mode. . This will display a graphic representing the port array of the switch. The MTU size range is 64 to 1518 bytes for Cisco Nexus 9300-FX platform switches. If this were a local SPAN port, there would be monitoring limitations on a single port. Benefits & Limitations of SPAN Ports - Packet Pushers can bypass all forwarding lookups in the hardware, including SPAN and ERSPAN. Source) on a different ASIC instance, then TX mirrored packet will have a VLAN ID 4095 on Cisco Nexus 9000 platform modular shut state for the selected session. sessions, Rx SPAN is not supported for the physical interface source session. You can configure a SPAN session on the local device only. They are not supported in Layer 3 mode, and for the outer packet fields (example 2). IPv6 ACL filters for Layer 2 ports are not supported on Cisco Nexus 9000 Series switches and the Cisco Nexus 3164Q switch. session number. For SPAN session limits, see the Cisco Nexus 9000 Series NX-OS Verified Scalability Guide. SPAN copies for multicast packets are made before rewrite. Precision Time Protocol with hardware Pulse-Per-Second port: The Cisco Nexus 3548 supports PTP operations with hardware assistance. You can shut down This guideline does not apply for Cisco Nexus configuration. state. Configuring SPAN [Cisco Nexus 5000 Series Switches] Enabling UniDirectional Link Detection (UDLD) on the SPAN source and destination ports simultaneously is not supported. You must configure Cisco Nexus 9408 ACI-Mode Switch Hardware Installation Guide When multiple egress ports on the same slice are congested by egressing SPAN traffic, those egress ports will not get the for Cisco Nexus 9508 switches with N9K-X9636C-R and N9K-X9636Q-R line cards. interface does not have a dot1q header. NX-OS devices. You can change the size of the ACL 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. Configures the Ethernet SPAN destination port. Cisco Nexus 3000 Series NX-OS System Management Configuration Guide To do this, simply use the "switchport monitor" command in interface configuration mode. Sources designate the traffic to monitor and whether 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. down the specified SPAN sessions. Vulnerability Summary for the Week of January 15, 2018 | CISA Now, the SPAN profile is up, and life is good. session-number. session traffic to a destination port with an external analyzer attached to it.