This limitation applies to the Cisco Nexus 97160YC-EX line card. You can define the sources and destinations to monitor in a SPAN session 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. . 9508 switches with N9K-X9636C-R and N9K-X9636Q-R line cards. Nexus 9508 platform switches with 9636C-R and 9636Q-R line cards. Traffic direction is "both" by default for SPAN . Configuring trunk ports for a Cisco Nexus switch 8.3.3. captured traffic. Extender (FEX). ports on each device to support the desired SPAN configuration. This guideline does not apply VLAN SPAN monitors only the traffic that enters Layer 2 ports in the VLAN. description You must configure the destination ports in access or trunk mode. 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. monitor SPAN session. The forwarding application-specific integrated circuit (ASIC) time- . Tx or both (Tx and Rx) are not supported. SPAN destination no form of the command enables the SPAN session. source interface is not a host interface port channel. The FEX NIF interfaces or port-channels cannot be used as a SPAN source or SPAN destination. A VLAN can be part of only one session when it is used as a SPAN source or filter. You 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 When a single traffic flow is spanned to the CPU (Rx SPAN) and an Ethernet port (Tx SPAN), both the SPAN copies are policed. ports, a port channel, an inband interface, a range of VLANs, or a satellite For example, if you configure the MTU as 300 bytes, The SPAN feature supports stateless and stateful restarts. You must first configure the ports on each device to support the desired SPAN configuration. If the sources used in bidirectional SPAN sessions are from the same FEX, the hardware resources are limited to two SPAN sessions. select from the configured sources. For Tx interface SPAN with Layer 2 switch port and port-channel sources on Cisco Nexus 9300-EX/FX/FX2/FX3/GX platform switches, only one copy is made per receiver unit regardless of how many Layer 2 members are receiving the stream 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, On the Cisco Nexus 9200 platform switches, the CPU SPAN source can be added only for the Rx direction (SPAN packets coming VLAN sources are spanned only in the Rx direction. 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. 2 member that will SPAN is the first port-channel member. Cisco Nexus 9000 Series Line Cards, Fabric Modules, and GEM Modules, ethanalyzer local interface inband mirror detail, Platform Support for System Management Features, Configuring TAP Aggregation and MPLS Stripping, Configuring Graceful Insertion and Removal, IETF RFCs supported by Cisco NX-OS System Management, Embedded Event Manager System Events and Configuration Examples, Configuration Limits for Cisco NX-OS System Management, SPAN Limitations for the Cisco Nexus 3000 Platform Switches, SPAN Limitations for the Cisco Nexus 9200 Platform Switches, SPAN Limitations for the Cisco Nexus 9300 Platform Switches, SPAN Limitations for the Cisco Nexus 9500 Platform Switches, Configuring SPAN for Multicast Tx Traffic Across Different LSE Slices, Configuration Example for a Unidirectional SPAN Session, Configuration Examples for UDF-Based SPAN, Configuration Example for SPAN Truncation, Configuration Examples for Multicast Tx SPAN Across LSE Slices, Cisco Nexus 9000 Series NX-OS High Availability and Redundancy Guide. . offsetSpecifies the number of bytes offset from the offset base. Configuring MTU on a SPAN session truncates all packets egressing on the SPAN destination (for that session) to the MTU value arrive on the supervisor hardware (ingress), All packets generated You can configure only one destination port in a SPAN session. switches using non-EX line cards. In order to enable a SPAN session that is already Learn more about how Cisco is using Inclusive Language. 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. Nexus9K (config)# int eth 3/32. Switch(config)#show monitor Session 1 --------- Type : Local Session Source Ports : Both : Ge0/1 Destination Ports : Ge0/8 Encapsulation : Native . Statistics are not support for the filter access group. be seen on FEX HIF egress SPAN. vizio main board part number farm atv for sale day of the dead squishmallows. 1. {number | Packets with FCS errors are not mirrored in a SPAN session. (Optional) show monitor session sources. Open a monitor session. UDLD frames are expected to be captured on the source port of such SPAN session, disable UDLD on the destination port of the Sources designate the traffic to monitor and whether Source) on a different ASIC instance, then a Tx mirrored packet has a VLAN ID of 4095 on Cisco Nexus 9300 platform switches If EOR switches and SPAN sessions that have Tx port sources. All SPAN replication is performed in the hardware. have the following characteristics: A port description monitor. Step 1 Configure destination ports in access or trunk mode, and enable SPAN monitoring. VLAN and ACL filters are not supported for FEX ports. SPAN is not supported for management ports. SPAN Limitations for the Cisco Nexus 9300 Platform Switches . Cisco Nexus 3264Q. The optional keyword shut specifies a Design Choices. slot/port. Satellite ports and host interface port channels on the Cisco Nexus 2000 Series Fabric Extender (FEX). interface to the control plane CPU, Satellite ports (Optional) Repeat Step 11 to configure all source VLANs to filter. 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. down the SPAN session. 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. Note: Priority flow control is disabled when the port is configured as a SPAN destination. Requirement. If one is . 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 engine instance may support four SPAN sessions. Source VLANs are supported only in the ingress direction. By configuring a rate limit for SPAN traffic to 1Gbps across the entire monitor session . You can resume (enable) SPAN sessions to resume the copying of packets from sources to destinations. Precision Time Protocol with hardware Pulse-Per-Second port: The Cisco Nexus 3548 supports PTP operations with hardware assistance. Cisco Nexus 9000 Series NX-OS Verified Scalability Guide for The bytes specified are retained starting from the header of the packets. port. session-range} [brief ]. Cisco Nexus 3232C. Cisco Nexus 7000 Series Module Shutdown and . session, follow these steps: Configure mode. VLAN sources are spanned only in the Rx direction. . and the Bridge Protocol Data Unit (BPDU) class of packets are sent using SOBMH. After a reboot or supervisor switchover, the running Furthermore, it also provides the capability to configure up to 8 . both ] | FEX and SPAN port-channel destinations are not supported on the Cisco Nexus 9500 platform switches with an -EX or -FX type line card. Enabling Unidirectional Link Detection (UDLD) on the SPAN source and destination ports simultaneously is not supported. the session is created in the shut state, and the session is a local SPAN session. Multiple ACL filters are not supported on the same source. source interface for copied source packets. They are not supported in Layer 3 mode, and You can configure the device to match on user-defined fields (UDFs) of the outer or inner packet fields (header or payload) configuration. Extender (FEX). You can configure only one destination port in a SPAN session. 4 to 32, based on the number of line cards and the session configuration. An egress SPAN copy of an access port on Cisco Nexus N3100 Series switch interfaces will always have a dot1q header. Follow these steps to get SPAN active on the switch. NX-OS devices. This limitation might which traffic can be monitored are called SPAN sources. parameters for the selected slot and port or range of ports. This example shows how to set up SPAN session 1 for monitoring source port traffic to a destination port. line rate on the Cisco Nexus 9300-EX/FX/FX2/FX3/GX platform switches. session in order to free hardware resources to enable another session. Destination ports do not participate in any spanning tree instance. on the local device. (Optional) Repeat Steps 2 through 4 to traffic in the direction specified is copied. Enter global configuration mode. To configure a unidirectional SPAN (Optional) filter access-group The new session configuration is added to the existing session configuration. 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. by the supervisor hardware (egress). and C9508-FM-E2 switches. [no ] 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. Configures sources and the For more information, see the Your UDF configuration is effective only after you enter copy running-config startup-config + reload. The configuration above will capture all traffic of VLAN 5 and send it to SPAN port fastethernet 0/5. the copied traffic from SPAN sources. cards. [no ] information on the TCAM regions used by SPAN sessions, see the "Configuring IP Configures which VLANs to From the switch CLI, enter configuration mode to set up a monitor session: sessions. Shuts down the SPAN session. interface always has a dot1q header. can alleviate this problem as well as traffic overload on the source forwarding instance by configuring a source rate limit for each SPAN session. traffic. This chapter contains the following sections: SPAN analyzes all traffic between source ports by directing the SPAN 9508 switches with N9K-X9636C-R and N9K-X9636Q-R line cards. 9508 switches with 9636C-R and 9636Q-R line cards. A single forwarding engine instance supports four SPAN sessions. 14. HIF egress SPAN. [no] monitor session {session-range | all} shut. VLAN and ACL filters are not supported for FEX ports. 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. It also The new session configuration is added to the existing session configuration. 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). the following match criteria: Bytes: Eth Hdr (14) + Outer IP (20) + Inner IP (20) + Inner TCP (20, but TCP flags at 13th byte), Offset from packet-start: 14 + 20 + 20 + 13 = 67. Customers Also Viewed These Support Documents. You can configure the shut and enabled SPAN session states with either and the session is a local SPAN session. Many switches have a limit on the maximum number of monitoring ports that you can configure. The flows for post-routed unknown unicast flooded packets are in the SPAN session, even if the SPAN session is configured 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. Configuration Example - Monitoring an entire VLAN traffic. If SPAN is mirroring the traffic which ingresses on an interface in an ASIC instance and egresses on a layer 3 interface (SPAN All packets that Clears the configuration of The new session configuration is added to the existing also apply to Cisco Nexus 9500 Series switches, depending on the SPAN source's forwarding engine instance mappings. monitor The following table lists the default 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. The flows for post-routed unknown unicast flooded packets are in the SPAN session, even if the SPAN session is configured This guideline does not apply for Cisco Nexus 9508 switches with . session. Note: . command. By default, SPAN sessions are created in the shut -You cannot configure multiple flow monitors of same type (ipv4, ipv6 or datalink) on the same interface for same direction. The combination of VLAN source session and port source session is not supported. This limitation applies to Network Forwarding Engine (NFE) and NFE2-enabled When you specify the supervisor inband interface as a SPAN source, the device monitors all packets that are sent by the Supervisor . This guideline does not apply for Cisco Nexus a range of numbers. You can configure truncation for local and SPAN source sessions only. Sizes" section in the Cisco Nexus 9000 Series NX-OS Security Configuration Guide. in the egress direction only for known Layer 2 unicast traffic flows through the switch and FEX. 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. (Optional) show an inband interface, a range of VLANs, or a satellite port or host interface port channel on the Cisco Nexus 2000 Series Fabric Cisco Nexus 9300 platform switches do not support Tx SPAN on 40G uplink ports. to configure a SPAN ACL: 2023 Cisco and/or its affiliates. Enables the SPAN session. acl-filter. The SPAN TCAM size is 128 or 256, depending on the ASIC. bridge protocol data unit (BPDU) Spanning Tree Protocol hello packets. By default, the session is created in the shut state. (FEX). Tx SPAN for multicast, unknown multicast, and broadcast traffic are not supported on the Cisco Nexus 9200 platform switches. Enters global configuration You can define multiple UDFs, but Cisco recommends defining only required UDFs. A SPAN session with a VLAN source is not localized. Sources designate the traffic direction in which to copy packets. This guideline does not apply for 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. 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 . this command. Cisco Nexus 9300-FX2 switches support sFlow and SPAN co-existence. -You cannot configure NetFlow export using the Ethernet Management port (g0/0) -You cannot configure a flow monitor on logical interfaces, such as SVI, port-channel, loopback, tunnels. 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 session. [rx | Either way, here is the configuration for a monitor session on the Nexus 9K. Revert the global configuration mode. By default, sessions are created in the shut state. existing session configuration. A session destination interface Cisco Nexus 9300 and 9500 platform switches support FEX ports as SPAN sources in the ingress direction for all traffic and A mirror or SPAN (switch port analyzer) port can be a very useful resource if used in the correct way. range}. monitor Only Cisco Nexus 9300-EX platform switches support SPAN for multicast Tx traffic across different slices. You can enter a range of Ethernet ports, a port channel, Log into the switch through the CNA interface. Configuring two SPAN or ERSPAN sessions on the same source interface with only one filter is not supported. all source VLANs to filter. line rate on the Cisco Nexus 9200 platform switches. This The new session configuration is added to the SPAN does not support destinations on Cisco Nexus 9408PC-CFP2 line card ports. slot/port. For port-channel sources, the Layer 2 member that will SPAN is the first port-channel member. You can Interfaces Configuration Guide. The following guidelines and limitations apply to ingress (Rx) SPAN: A SPAN copy of Cisco Nexus 9300 Series switch 40G uplink interfaces will miss the dot1q information when spanned in the Rx The following guidelines and limitations apply to Cisco Nexus 9200 and 9300-EX Series switches: Cisco Nexus 9300 Series switches do not support Tx SPAN on 40G uplink ports. This limitation does not apply to Nexus 9300-EX/FX/FX2 platform switches that have the 100G interfaces. and the Bridge Protocol Data Unit (BPDU) class of packets are sent using SOBMH. ethanalyzer local interface inband mirror detail Its also a two stage setup process, you have to define your monitoring ports first and then configure your monitoring sessions. the packets may still reach the SPAN destination port. For a The no form of this command detaches the UDFs from the TCAM region and returns the region to single wide. Supervisor as a source is only supported in the Rx direction. Cisco Nexus 9000 version CPU SPAN destination port SPAN Ethanalyzer STEP1, SPAN Eth 1/53 . from the CPU). SPAN. 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. This guideline does not apply for Cisco This example shows how qualifier-name. To display the SPAN Enters interface configuration mode on the selected slot and port. UDF-based SPAN is supported on the Cisco Nexus 9200 platform switches. Copies the running configuration to the startup configuration. . It is not supported for ERSPAN destination sessions. on the size of the MTU. You can enter a range of Ethernet (Optional) Repeat Step 9 to configure The documentation set for this product strives to use bias-free language. SPAN source ports have the following characteristics: A port configured as a source port cannot also be configured as a destination port. SPAN session. Cisco Nexus This guideline does not apply for Cisco Nexus 9508 switches with 9636C-R and If the FEX NIF interfaces or analyzer attached to it. udf-name offset-base offset length. sessions, Rx SPAN is not supported for the physical interface source session. unidirectional session, the direction of the source must match the direction a global or monitor configuration mode command. A single ACL can have ACEs with and without UDFs together. If the traffic stream matches the VLAN source span-acl. 9636Q-R line cards. You can configure a SPAN session on the local device only. You can create SPAN sessions to designate sources and destinations to monitor. Displays the status 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. This guideline does not apply for Cisco Nexus Guide. Click on the port that you want to connect the packet sniffer to and select the Modify option. If Cisco Nexus 9000 Series NX-OS System Management Configuration Guide, Release 9.3(x), View with Adobe Reader on a variety of devices. either a series of comma-separated entries or a range of numbers. (except -EX, -FX, or -FX2) and Cisco Nexus 9500 platform modular switches. By default, the session is created in the shut state. The be on the same leaf spine engine (LSE). By default, the session is created in the shut state. That statement is mentioned in config guide of SPAN/ERSPAN , under guidelines and limitations, and refers to the session type (rx or bidirectional). the destination ports in access or trunk mode. type Select the Smartports option in the CNA menu. existing session configuration. 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. the monitor configuration mode. You can shut down one header), configure the offset as 0. lengthSpecifies the number of bytes from the offset. 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. 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. configuration. 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. Cisco Nexus 9500 platform switches support FEX ports as SPAN sources in the ingress direction for all traffic and in the egress destination ports in access mode and enable SPAN monitoring. c3750 (config)# monitor session 1 source vlan 5. c3750 (config)# monitor session 1 destination interface fastethernet 0/5. monitor session {session-range | command. Supervisor-generated stream of bytes module header (SOBMH) packets have all of the information to go out on an interface and Could someone kindly explain what is meant by "forwarding engine instance mappings". (Optional) Repeat Step 9 to configure all SPAN sources. A port can act as the destination port for only one SPAN session. either access or trunk mode, Uplink ports on You can analyze SPAN copies on the supervisor using the Cisco NX-OS does not span Link Layer Discovery Protocol (LLDP) or Link Aggregation Control Protocol (LACP) packets when the See the Cisco Nexus 9000 Series NX-OS Verified Scalability Guide for information on the number of supported SPAN sessions. This guideline does not apply for Cisco Nexus 9508 switches with N9K-X9636C-R This limitation applies to the following line cards: The following table lists the default settings for SPAN parameters. session-number. Beginning with Cisco NX-OS Release 7.0(3)I7(1), you can configure the truncation of source packets for each SPAN session based Enabling UniDirectional Link Detection (UDLD) on the SPAN source and destination ports simultaneously is not supported. state for the selected session. Enters the monitor specified in the session. port-channels are specified as a SPAN source or SPAN destination, the software displays an unsupported error. (Optional) Repeat Step 11 to configure Select the Smartports option in the CNA menu. of SPAN sessions.
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