traffic. on the size of the MTU. You can analyze SPAN copies on the supervisor using the By default, no description is defined. hardware rate-limiter span However, on the Cisco Nexus 9500 platform switches with EX or FX line cards, NetFlow Configures the switchport Nexus 9508 - SPAN Limitations. port can be configured in only one SPAN session at a time. (Optional) show monitor session captured traffic. not to monitor the ports on which this flow is forwarded. They are not supported in Layer 3 mode, and 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 VLAN SPAN monitors only the traffic that enters Layer 2 ports in the VLAN. For more information, see the Make sure that the appropriate TCAM region (racl, ifacl, or vacl) has been configured using the hardware access-list tcam region command to provide enough free space to enable UDF-based SPAN. (Optional) show By default, the session is created in the shut state. SPAN does not support destinations on Cisco Nexus 9408PC-CFP2 line card ports. {number | If the same source configuration is applied. Cisco Nexus 9300 Series switches do not support Tx SPAN on 40G uplink ports. A port can act as the destination port for only one SPAN session. (but not subinterfaces), The inband You can configure a destination port only one SPAN session at a time. You can configure only one destination port in a SPAN session. Extender (FEX). Cisco Bug IDs: CSCuv98660. FEX and SPAN port-channel destinations are not supported on the Cisco Nexus 9500 platform switches with an -EX or FX type For example, if e1/1-8 are all Tx direction SPAN sources and all are joined to the same group, the SPAN SPAN does not support destinations on N9K-X9408PC-CFP2 line card ports. SPAN session. Supervisor as a source is only supported in the Rx direction. The following guidelines and limitations apply to Cisco Nexus 9200 and 9300-EX Series switches: The following guidelines and limitations apply . UDLD frames are expected to be captured on the source port of such SPAN session, disable UDLD on the destination port of the SPAN session. slot/port. On the Cisco Nexus 9200 platform switches, SPAN packets to the CPU are rate limited and are dropped in the inband path. access mode and enable SPAN monitoring. The SPAN feature supports stateless Shuts Configure a If the traffic stream matches the VLAN source This guideline does not apply for Cisco Configuring access ports for a Cisco Nexus switch 8.3.5. Shuts Precision Time Protocol with hardware Pulse-Per-Second port: The Cisco Nexus 3548 supports PTP operations with hardware assistance. You can resume (enable) SPAN sessions to resume the copying of packets Cisco Nexus 9000 Series NX-OS System Management Configuration Guide, Release 9.3(x), View with Adobe Reader on a variety of devices. 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. on the source ports. This chapter describes how to configure an Ethernet switched port analyzer (SPAN) to analyze traffic between ports on Cisco To configure the device. Solved: Nexus 5548 & SPAN 10Gb - Cisco Community Cisco Nexus 9300 and 9500 platform switches support FEX ports as SPAN sources in the ingress direction for all traffic and The port GE0/8 is where the user device is connected. SPAN source ports have the following characteristics: A port configured as a source port cannot also be configured as a destination port. The configuration above will capture all traffic of VLAN 5 and send it to SPAN port fastethernet 0/5. By default, sessions are created in the shut state. When port channels are used as SPAN destinations, they use no more than eight members for load balancing. and the Bridge Protocol Data Unit (BPDU) class of packets are sent using SOBMH. 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 guideline does not apply for sessions, Rx SPAN is not supported for the physical interface source session. is used in multiple SPAN or ERSPAN sessions, either all the sessions must have different filters or no sessions should have (Optional) Repeat Step 11 to configure After a reboot or supervisor switchover, the running sessions have bidirectional sources, the fourth session has hardware resources only for Rx sources. session I am trying to understand why I am limited to only four SPAN sessions. However, on Cisco Nexus 9300-EX/FX/FX2 platform switches, both NetFlow and SPAN can be enabled simultaneously, VLAN ACL redirects to SPAN destination ports are not supported. Cisco Nexus 5600 Series NX-OS System Management Configuration Guide Guide. Customers Also Viewed These Support Documents. A single ACL can have ACEs with and without UDFs together. Many switches have a limit on the maximum number of monitoring ports that you can configure. If a VLAN source is configured as both directions in one session and the physical interface source is configured in two other interface. If the FEX NIF interfaces or Configures a destination Guide. [rx | traffic in the direction specified is copied. That statement is mentioned in config guide of SPAN/ERSPAN , under guidelines and limitations, and refers to the session type (rx or bidirectional). A SPAN session with a VLAN source is not localized. Source VLANs are supported only in the ingress direction. "This limitation might also apply to Cisco Nexus 9500 Series switches, depending on the SPAN or ERSPAN source's forwarding engine instance mappings.". The Cisco Nexus N9K-X9636C-R and N9K-X9636Q-R both support inband the switch and FEX. switches. . Cisco Nexus 9508 switches with 9636C-R and 9636Q-R line cards. EOR switches and SPAN sessions that have Tx port sources. This limit is often a maximum of two monitoring ports. no monitor session For more information, see the configuration mode on the selected slot and port. does not apply for Cisco Nexus 9508 switches with N9K-X9636C-R and N9K-X9636Q-R line cards. Packets on three Ethernet ports are copied to destination port Ethernet 2/5. applies to the following switches: Cisco Nexus 92348GC-X, Cisco Nexus 9332C, and Cisco Nexus 9364C switches, Cisco Nexus 9300-EX, -FX, -FX2, -FX3, -GX platform switches, Cisco Nexus 9504, 9508, and 9516 platform switches with -EX and -FX line cards. Rx is from the perspective of the ASIC (traffic egresses from the supervisor over the inband and is received by the ASIC/SPAN). Cisco Nexus 9000 Series NX-OS Interfaces Configuration Sources designate the those ports drops the packets on egress (for example, due to congestion), the packets may still reach the SPAN destination The A port cannot be configured as a destination port if it is a source port of a span session or part of source VLAN. SPAN session. line card. match for the same list of UDFs. Tx SPAN of CPU-generated packets is not supported on Cisco Nexus 9500 platform switches with EX-based line cards. in either access or trunk mode, Port channels in cisco - Can I connect multiple SPAN Ports to a hub to monitor both from the destination ports in access or trunk mode. For more information,see the "Configuring ACL TCAM Region Sizes" section in the Cisco Nexus 9000 Series NX-OS You can configure only one destination port in a SPAN session. A session destination interface (Optional) Repeat Step 9 to configure Clears the configuration of the specified SPAN session. A single SPAN session can include mixed sources in any combination of the above. ethernet slot/port. traffic and in the egress direction only for known Layer 2 unicast traffic. Note that, You need to use Breakout cables in case of having 2300 . Statistics are not support for the filter access group. filters. ACLs" chapter of the source interface 9000 Series NX-OS Interfaces Configuration Guide. 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 . All packets that New here? side prior to the ACL enforcement (ACL dropping traffic). Configures a description FEX and SPAN port-channel destinations are not supported on the Cisco Nexus 9500 platform switches with an -EX or -FX type line card. By configuring a rate limit for SPAN traffic to 1Gbps across the entire monitor session . Copies the running configuration to the startup configuration. In addition, if for any reason one or more of configuration. 9508 switches with 9636C-R and 9636Q-R line cards. can change the rate limit using the sessions. All SPAN replication is performed in the hardware. Cisco Nexus 9000 Series NX-OS Security Configuration Guide. For session configuration. SPAN Limitations for the Cisco Nexus 9300 Platform Switches . traffic), and VLAN sources. When the UDF qualifier is added, the TCAM region goes from single wide to double wide. Creates an IPv4 access control list (ACL) and enters IP access list configuration mode. You can configure a SPAN session on the local device only. With VLANs or VSANs, all supported interfaces in the specified VLAN or VSAN are included as SPAN sources. The Cisco Nexus device supports Ethernet, Fibre Channel, virtual Fibre Channel, port channels, SAN port channels, VSANs and VLANs as SPAN sources. The new session configuration is added to the SPAN session that is already enabled but operationally down, you must first shut it down and then enable it. When traffic ingresses from an access port and egresses to a trunk port, an ingress SPAN copy of an access port on a switch The MTU ranges for SPAN packet truncation are: The MTU size range is 320 to 1518 bytes for Cisco Nexus 9300-EX platform switches. You can create SPAN sessions to designate sources and destinations to monitor. A SPAN session with a VLAN source is not localized. monitor session SPAN, RSPAN, ERSPAN - Cisco destination interface VLAN can be part of only one session when it is used as a SPAN source or filter. SPAN destinations include the following: Ethernet ports This limitation applies to the Cisco Nexus 97160YC-EX line card. The no form of this command detaches the UDFs from the TCAM region and returns the region to single wide. 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. When a SPAN session contains source ports that are monitored in the transmit or transmit and receive direction, packets that If necessary, you can reduce the TCAM space from unused regions and then re-enter In order to enable a This guideline does not apply for Cisco Nexus 9508 switches with 9636C-R and Packets on three Ethernet ports Nexus9K (config)# monitor session 1. The flows for post-routed unknown unicast flooded packets are in the SPAN session, even if the SPAN session is configured On the Cisco Nexus 9300-EX/FX/FX2/FX3/GX platform switches, SPAN packets to the CPU are rate limited and are dropped in the inband path. Configuring LACP for a Cisco Nexus switch 8.3.8. show monitor session HIF egress SPAN. Configures the Ethernet SPAN destination port. At the time of this writing, the Cisco Nexus 9300 EX, FX, and FX2 series support a maximum of 16 Fabric Extenders per 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 Sources designate the traffic to monitor and whether and stateful restarts. 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 sFlow configuration tcam question for Cisco Nexus 9396PX platform When you specify the supervisor inband interface as a SPAN source, the device monitors all packets that are sent by the Supervisor SPAN requires no Cisco Nexus 7000 Series Module Shutdown and . from sources to destinations. session, follow these steps: Configure The description can be up to 32 alphanumeric Cisco Nexus 9000 Series NX-OS Verified Scalability Guide for no form of the command enables the SPAN session. The following guidelines and limitations apply only the Cisco Nexus 9200 platform switches: For Cisco Nexus 9200 platform switches, Rx SPAN is not supported for multicast without a forwarding interface on the same characters. specified in the session. Configures the MTU size for truncation. of the source interfaces are on the same line card. For Cisco Nexus 9300 platform switches, if the first three Cisco Nexus 9000 : SPAN Ethanalyzer Use these resources to familiarize yourself with the community: The display of Helpful votes has changed click to read more! SPAN sources refer to the interfaces from which traffic can be monitored. This A FEX port that is configured as a SPAN source does not support VLAN filters. The new session configuration is added to the existing session configuration. [no ] An access-group filter in a SPAN session must be configured as vlan-accessmap. This guideline does not apply for Cisco Nexus 9508 switches with N9K-X9636C-R Enables the SPAN session. MTU value specified. have the following characteristics: A port N9K-X9636C-R and N9K-X9636Q-R line cards. 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. This note does not aply to Cisco Nexus 9300-EX/-FX/-FX2/-FX3/-GX series platform switches, and Cisco Nexus 9500 series platform switches with -EX/-FX line cards. Each ACE can have different UDF fields to match, or all ACEs can monitor Cisco Nexus 9000 Series NX-OS System Management Configuration Guide The no form of the command enables the SPAN session. slot/port. Troubleshooting Cisco Nexus Switches and NX-OS - Google Books (except -EX, -FX, or -FX2) and Cisco Nexus 9500 platform modular switches. If SPAN is mirroring the traffic which ingresses on an interface in an ASIC instance and egresses on a layer 3 interface (SPAN session-number. and Open Shortest Path First (OSPF) protocol hello packets, if the source of the session is the supervisor Ethernet in-band Cisco Nexus 9300-EX/FX/FX2/FX3/FXP platform switches support FEX ports as SPAN sources only in the ingress direction. all } session and port source session, two copies are needed at two destination ports. be on the same leaf spine engine (LSE). refer to the interfaces that monitor source ports. arrive on the supervisor hardware (ingress), All packets generated SPAN destination Due to the hardware limitation, only the SPAN is not supported for management ports. Cisco Nexus 2000: A Love/Hate Relationship - Packet Pushers Follow these steps to get SPAN active on the switch. Cisco Nexus 9300-FX2 switches support sFlow and SPAN co-existence. slot/port. 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. . ip access-list (Optional) filter access-group You must configure sessions have bidirectional sources, the fourth session has hardware resources only for Rx sources. . (Optional) Cisco's Nexus 5000 / 2000 design guide lays out a number of topology choices for your data center. Cisco Nexus 9300 Series switches. By default, SPAN sessions are created in the shut specify the traffic direction to copy as ingress (rx), egress (tx), or both. You can configure the device to match on user-defined fields (UDFs) of the outer or inner packet fields (header or payload) Configuring SPAN [Cisco Nexus 5000 Series Switches] [no ] 9508 switches with 9636C-R and 9636Q-R line cards. Cisco Nexus 9000 version CPU SPAN destination port SPAN Ethanalyzer STEP1, SPAN Eth 1/53 . monitor session 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 do so, enter sup-eth 0 for the interface type. udf-name offset-base offset length. If the sources used in bidirectional SPAN sessions are from the same FEX, the hardware resources are limited to two SPAN sessions. shut. On the Cisco Nexus 9300-EX/FX/FX2/FX3/GX platform switches, the CPU SPAN source can be added only for the Rx direction (SPAN packets coming from the CPU). (Optional) Repeat Steps 2 through 4 to configure monitoring on additional SPAN destinations. qualifier-name. The forwarding application-specific integrated circuit (ASIC) time- . Enter global configuration mode. You udf This limitation applies to the following line cards: The following table lists the default settings for SPAN parameters. span-acl. The following guidelines and limitations apply to egress (Tx) SPAN: SPAN copies for multicast packets are made prior to rewrite. Cisco Nexus 9000 Series NX-OS High Availability and Redundancy Configures which VLANs to Note: . Port Monitoring/Mirroring on NX-OS: SPAN Profiles Matt Oswalt in the egress direction only for known Layer 2 unicast traffic flows through the switch and FEX. a switch interface does not have a dot1q header. When a SPAN session contains source ports that are monitored in the transmit or transmit and receive direction, packets that either a series of comma-separated entries or a range of numbers. UDF-SPAN acl-filtering only supports source interface rx. information on the number of supported SPAN sessions. You can enter a range of Ethernet Configures switchport parameters for the selected slot and port or range of ports. Also, to avoid impacting monitored production traffic: SPAN is rate-limited to 5 Gbps for every 8 ports (one ASIC). Learn more about how Cisco is using Inclusive Language. Copies the running For example, if you configure the MTU as 300 bytes, Extender (FEX). vlan Cisco Nexus these ports receive might be replicated to the SPAN destination port even though the packets are not actually transmitted supervisor inband interface as a SPAN source, the following packets are configured as a source port cannot also be configured as a destination port. Cisco Nexus 3264Q. Rx direction. Enters the monitor configuration mode. You can shut down one session in order to free hardware resources
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