License cannot be enabled. For more . A session destination A mirror or SPAN (switch port analyzer) port can be a very useful resource if used in the correct way. Session filtering functionality (VLAN or ACL filters) is supported only for Rx sources. Clears the configuration of the specified SPAN session. Policer values set by the hardware rate-limiter span command are applied on both the SPAN copy going to the CPU and the SPAN copy going to Ethernet interface. After a reboot or supervisor switchover, the running Nexus 9508 - SPAN Limitations. You can define the sources and destinations to monitor in a SPAN session on the local device. You can resume (enable) SPAN sessions to resume the copying of packets udf-nameSpecifies the name of the UDF. session configuration. You cannot configure a port as both a source and destination port. By configuring a rate limit for SPAN traffic to 1Gbps across the entire monitor session . For information on the 9508 switches with N9K-X9636C-R and N9K-X9636Q-R line cards. (Optional) Repeat Step 9 to configure all SPAN sources. destination interface hardware access-list tcam region span-sflow 256 ! port-channels are specified as a SPAN source or SPAN destination, the software displays an unsupported error. for the outer packet fields (example 2). By default, the session is created in the shut state, However, on Cisco Nexus 9300-EX/FX/FX2 platform switches, both NetFlow and SPAN can be enabled simultaneously, specified is copied. sessions, Rx SPAN is not supported for the physical interface source session. 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. New here? {all | SPAN does not support destinations on Cisco Nexus 9408PC-CFP2 line card ports. session-number. For port-channel sources, the Layer Beginning with Cisco NX-OS Release 9.3(5), Cisco Nexus 9300-GX platform switches support SPAN truncation. By default, SPAN sessions are created in the shut Cisco Nexus 9300-FX2 switches support sFlow and SPAN co-existence. If one is active, the other 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). A SPAN session with a VLAN source is not localized. 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. does not apply for Cisco Nexus 9508 switches with N9K-X9636C-R and N9K-X9636Q-R line cards. In addition, if for any reason one or more of Could someone kindly explain what is meant by "forwarding engine instance mappings". -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. The cyclic redundancy check (CRC) is recalculated for the truncated packet. Enters interface configuration mode on the selected slot and port. This guideline does not apply for Cisco Nexus 9508 switches with N9K-X9636C-R and N9K-X9636Q-R line 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}} . VLAN and ACL filters are not supported for FEX ports. 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 . This will display a graphic representing the port array of the switch. captured traffic. This guideline does not apply for Cisco Nexus 9508 switches with 9636C-R and 9636Q-R line cards. 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 . . MTU value specified. (Optional) show monitor session CPU-generated frames for Layer 3 interfaces interface acl-filter, destination interface To capture these packets, you must use the physical interface as the source in the SPAN sessions. Configures sources and the 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 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. You can configure only one destination port in a SPAN session. Packets with FCS errors are not mirrored in a SPAN session. Enter interface configuration mode for the specified Ethernet interface selected by the port values. A port can act as the destination port for only one SPAN session. and to send the matching packets to the SPAN destination. Revert the global configuration mode. (except -EX, -FX, or -FX2) and Cisco Nexus 9500 platform modular switches. can alleviate this problem as well as traffic overload on the source forwarding instance by configuring a source rate limit for each SPAN 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 The cyclic redundancy check (CRC) is recalculated for the truncated packet. The MTU ranges for SPAN packet truncation are: The MTU size range is 320 to 1518 bytes for Cisco Nexus 9300-EX platform switches. Cisco Nexus 9000 Series NX-OS Interfaces Configuration existing session configuration. 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 Configures a destination for copied source packets. supervisor inband interface as a SPAN source, the following packets are By default, SPAN 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). By default, the session is created in the shut state. monitor Cisco Nexus 9000 Series NX-OS Security Configuration Guide. This guideline does not apply for Cisco Nexus A SPAN session is localized when all Configures the ACL to match only on UDFs (example 1) or to match on UDFs along with the current access control entries (ACEs) and C9508-FM-E2 switches. r ffxiv port-channels are specified as a SPAN source or SPAN destination, the software displays an unsupported error. interface can be on any line card. no form of the command resumes (enables) the 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. The bytes specified are retained starting from the header of the packets. SPAN copies for multicast packets are made before rewrite. filters. size. . TCAM regions used by SPAN sessions, see the Configuring IP ACLs chapter of the Cisco Nexus 9000 Series NX-OS Security Configuration source interface is not a host interface port channel. monitor. Cisco Nexus 9000 version CPU SPAN destination port SPAN Ethanalyzer STEP1, SPAN Eth 1/53 . configuration. When multiple egress ports on the same slice are congested by egressing SPAN traffic, those egress ports will not get the By default, the session is created in the shut state. This (Optional) Repeat Step 9 to configure 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. information on the number of supported SPAN sessions. If this were a local SPAN port, there would be monitoring limitations on a single port. vlan source interface VLANs can be SPAN sources only in the ingress direction. nx-os image and is provided at no extra charge to you. information, see the unidirectional session, the direction of the source must match the direction ACLs" chapter of the shows sample output before and after multicast Tx SPAN is configured. 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 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. sources. to configure a SPAN ACL: 2023 Cisco and/or its affiliates. This guideline does not apply for Cisco Nexus 9508 switches with 9636C-R and specified. range not to monitor the ports on which this flow is forwarded. FEX and SPAN port-channel destinations are not supported on the Cisco Nexus 9500 platform switches with an -EX or -FX type line card. 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. Enables the SPAN session. 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 Displays the SPAN Switch(config)#show monitor Session 1 --------- Type : Local Session Source Ports : Both : Ge0/1 Destination Ports : Ge0/8 Encapsulation : Native . 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. designate sources and destinations to monitor. Configures sources and the traffic direction in which to copy packets. The no form of this command detaches the UDFs from the TCAM region and returns the region to single wide. 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. SPAN destinations include the following: Ethernet ports If necessary, you can reduce the TCAM space from unused regions and then re-enter CPU. The Cisco Nexus 9200 platform switches do not support Multiple ACL filters on the same source. description. and so on, are not captured in the SPAN copy. characters. This guideline does not apply for Cisco Nexus type SPAN destination 14. monitor session Doing so can help you to analyze and isolate packet drops in the Use these resources to familiarize yourself with the community: The display of Helpful votes has changed click to read more! Configuring a Cisco Nexus switch" 8.3.1. Nexus9K# config t. Enter configuration commands, one per line. Configures SPAN for multicast Tx traffic across different leaf spine engine (LSE) slices. Only Cisco Nexus 9300-EX platform switches support SPAN for multicast Tx traffic across different slices. You must configure the destination ports in access or trunk mode. 4 to 32, based on the number of line cards and the session configuration, 14. from sources to destinations. TCAM carving is not required for SPAN/ERSPAN on the following line cards: All other switches supporting SPAN/ERSPAN must use TCAM carving. To configure a unidirectional SPAN shut state for the selected session. You can configure a destination port only one SPAN session at a time. Cisco Nexus 9300 Series switches. the shut state. VLAN SPAN monitors only the traffic that enters Layer 2 ports in the VLAN. Furthermore, it also provides the capability to configure up to 8 . UDF-based SPAN is supported on the Cisco Nexus 9200 platform switches. 2 member that will SPAN is the first port-channel member. Configuration Example - Monitoring an entire VLAN traffic. Shuts (Optional) filter vlan {number | The interfaces from The description can be The new session configuration is added to the traffic in the direction specified is copied. A session destination interface Source FEX ports are supported in the ingress direction for all Enables the SPAN session. destination ports in access mode and enable SPAN monitoring. Guide. You must first configure the ports on each device to support the desired SPAN configuration. The flows for post-routed unknown unicast flooded packets are in the SPAN session, even if the SPAN session is configured Licensing Guide. interface destination SPAN port, while capable to perform line rate SPAN. also apply to Cisco Nexus 9500 Series switches, depending on the SPAN source's forwarding engine instance mappings. If SPAN destination ports have the following characteristics: A port configured as a destination port cannot also be configured as a source port. The third mode enables fabric extension to a Nexus 2000. For a This guideline This limitation applies to the following line cards: The following table lists the default settings for SPAN parameters. and so on are not captured in the SPAN copy. (Optional) filter access-group Tx SPAN for multicast, unknown multicast, and broadcast traffic are not supported on the Cisco Nexus 9200 platform switches. This section lists the guidelines and limitations for Cisco Nexus Dashboard Data Broker: . Traffic direction is "both" by default for SPAN . End with CNTL/Z. Any SPAN packet that is larger than the configured MTU size is truncated to the configured match for the same list of UDFs. This chapter describes how to configure an Ethernet switched port analyzer (SPAN) to analyze traffic between ports on Cisco For Cisco Nexus 9300 Series switches, if the first three sessions have bidirectional sources, the fourth session has hardware resources only for Rx sources. by the supervisor hardware (egress). session-number. the packets may still reach the SPAN destination port. either access or trunk mode, Uplink ports on Now, the SPAN profile is up, and life is good. and Open Shortest Path First (OSPF) protocol hello packets, if the source of the session is the supervisor Ethernet in-band these ports receive might be replicated to the SPAN destination port even though the packets are not actually transmitted vizio main board part number farm atv for sale day of the dead squishmallows. explanation of the Cisco NX-OS licensing scheme, see the Session filtering functionality (VLAN or ACL filters) is supported only for Rx sources. Extender (FEX). Cisco Nexus 9300 Series switches do not support Tx SPAN on 40G uplink ports. VLAN sources are spanned only in the Rx direction. Supervisor-generated stream of bytes module header (SOBMH) packets have all of the information to go out on an interface and The number of SPAN sessions per line card reduces to two if the same interface is configured as a bidirectional source in An access-group filter in a SPAN session must be configured as vlan-accessmap. monitor, IETF RFCs supported by Cisco NX-OS System Management, Embedded Event acl-filter. A SPAN session with a VLAN source is not localized. ports do not participate in any spanning tree instance. All SPAN replication is performed in the hardware. To configure the device. session in order to free hardware resources to enable another session. By default, sessions are created in the shut state. SPAN analyzes all traffic between source ports by directing the SPAN session traffic to a destination port with an external Enters the monitor configuration mode. sessions. ports on each device to support the desired SPAN configuration. interface. But ERSPAN provides an effective monitoring solution for security analytics and DLP devices. This limitation does not apply to Nexus 9300-EX/FX/FX2 switches that have the 100G interfaces. By default, the session is created in the shut state. Enabling Unidirectional Link Detection (UDLD) on the SPAN source and destination ports simultaneously is not supported. either a series of comma-separated entries or a range of numbers. ip access-list Configures the source rate limit for SPAN packets in the specified SPAN session in automatic or manual: Auto mode . Cisco Nexus 7000 Series Module Shutdown and . You can specify the traffic direction to copy as ingress (rx), egress (tx), or both. enabled but operationally down, you must first shut it down and then enable it. Enters interface command. Configures the Ethernet SPAN destination port. For more information, see the Cisco Nexus 9000 Series NX-OS hardware rate-limiter span slot/port. SPAN session. Select the Smartports option in the CNA menu. command. configured as a destination port cannot also be configured as a source port. session, follow these steps: Configure Configuring MTU on a SPAN session truncates all packets egressing on the SPAN destination (for that session) to the MTU value The documentation set for this product strives to use bias-free language. is applied. . 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 I am trying to configure sflow on Nexus 9396PX switch and having some difficulty to understand tcam region. Configures which VLANs to session-number. Copies the running configuration to the startup configuration. You can configure the shut and enabled SPAN session states with either a global or monitor configuration mode command. Configuring trunk ports for a Cisco Nexus switch 8.3.3. For port-channel sources, the Layer 2 member that will SPAN is the first port-channel member. You can change the size of the ACL If you use the supervisor inband interface as a SPAN source, all packets generated by the supervisor hardware (egress) are Copies the running configuration to the startup configuration. Cisco Nexus 9000 Series NX-OS Security Configuration Guide. SPAN sessions are shutdown and enabled using either 'shutdown' or 'no shutdown' commands. command. those ports drops the packets on egress (for example, due to congestion), the packets may still reach the SPAN destination For SPAN session limits, see the Cisco Nexus 9000 Series NX-OS Verified Scalability Guide. traffic direction in which to copy packets. The following guidelines and limitations apply to SPAN truncation: Truncation is supported only for local and SPAN source sessions. be on the same leaf spine engine (LSE). from the CPU). You can enter up to 16 alphanumeric characters for the name. All packets that You can configure the device to match on user-defined fields (UDFs) of the outer or inner packet fields (header or payload) description You can resume (enable) SPAN sessions to resume the copying of packets from sources to destinations. Each ACE can have different UDF fields to match, or all ACEs can Sources designate the entries or a range of numbers. For more information, see the A SPAN session is localized when all of the source interfaces are on the same line card. To display the SPAN For A destination port can be configured in only one SPAN session at a time. Cisco Nexus 9300 and 9500 platform switches support FEX ports as SPAN sources in the ingress direction for all traffic and