filters. Note: . VLAN ACL redirects to SPAN destination ports are not supported. Many switches have a limit on the maximum number of monitoring ports that you can configure. either a series of comma-separated entries or a range of numbers. The rest are truncated if the packet is longer than By default, SPAN sessions are created in the shut state. SPAN session on the local device only. The MTU size range is 320 to 1518 bytes for Cisco Nexus 9500 platform switches with 9700-EX and 9700-FX line cards. Statistics are not support for the filter access group. Enables the SPAN session. On Cisco Nexus 9300-EX/FX platform switches, SPAN and sFlow cannot both be enabled simultaneously. Cisco Catalyst switches can forward traffic on a destination SPAN port in Cisco IOS 12.1(13)EA1 and later; 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 . to copy ingress (Rx), egress (Tx), or both directions of traffic. Clears the configuration of the specified SPAN session. providing a viable alternative to using sFlow and SPAN. New here? By default, sessions are created in the shut state. refer to the interfaces that monitor source ports. udf-nameSpecifies the name of the UDF. This limitation does not apply to Nexus 9300-EX/FX/FX2 switches that have the 100G interfaces. Set the interface to monitor mode. Source FEX ports are supported in the ingress direction for all Cisco Nexus 3264Q. configuration. Cisco NX-OS does not span Link Layer Discovery Protocol (LLDP) or Link Aggregation Control Protocol (LACP) packets when the sources. Cisco Nexus 9000 Series NX-OS System Management Configuration Guide, Release 9.3(x), View with Adobe Reader on a variety of devices. interface. If type You can enter a range of Ethernet ports, a port channel, all source VLANs to filter. in the egress direction only for known Layer 2 unicast traffic flows through the switch and FEX. Configuration Example - Monitoring an entire VLAN traffic. From the switch CLI, enter configuration mode to set up a monitor session: Traffic direction is "both" by default for SPAN . Displays the SPAN session, follow these steps: Configure destination ports in header), configure the offset as 0. lengthSpecifies the number of bytes from the offset. Due to the hardware limitation, only the The port GE0/8 is where the user device is connected. A single SPAN session can include mixed sources in any combination of the above. 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 default, source ports. VLAN Tx SPAN is supported on Cisco Nexus 9300-EX and FX platform switches. If one is 2023 Cisco and/or its affiliates. line card. For SPAN session limits, see the Cisco Nexus 9000 Series NX-OS Verified Scalability Guide. You can configure a destination port only one SPAN session at a time. no form of the command resumes (enables) the type Limitations of SPAN on Cisco Catalyst Models. Cisco Nexus 9300 Series switches do not support Tx SPAN on 40G uplink ports. no monitor session This chapter describes how to configure an Ethernet switched port analyzer (SPAN) to analyze traffic between ports on Cisco NX-OS devices. You can configure truncation for local and SPAN source sessions only. (but not subinterfaces), The inband The rest are truncated if the packet is longer than This example shows how to configure SPAN truncation for use with MPLS stripping: This example shows how to configure multicast Tx SPAN across LSE slices for Cisco Nexus 9300-EX platform switches. direction only for known Layer 2 unicast traffic flows through the switch and FEX. Enters interface configuration mode on the selected slot and port. Troubleshooting Cisco Nexus Switches and NX-OS is your single reference for quickly identifying and solving problems with these . The Cisco Nexus N9K-X9636C-R and N9K-X9636Q-R both support inband analyzer attached to it. Cisco Nexus 9508 switches with 9636C-R and 9636Q-R line cards. A session destination interface VLAN source SPAN and the specific destination port receive the SPAN packets. Plug a patch cable into the destination . SPAN is supported in Layer 3 mode; however, SPAN is not supported on Layer 3 subinterfaces or Layer 3 port-channel subinterfaces. An access-group filter in a SPAN session must be configured as vlan-accessmap. The following table lists the default session-number. for copied source packets. a range of numbers. Now, the SPAN profile is up, and life is good. It also For Cisco Nexus 9300 Series switches, if the first three 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. those ports drops the packets on egress (for example, due to congestion), the packets may still reach the SPAN destination This limitation But ERSPAN provides an effective monitoring solution for security analytics and DLP devices. A VLAN can be part of only one session when it is used as a SPAN source or filter. cards. these ports receive might be replicated to the SPAN destination port even though the packets are not actually transmitted (except -EX, -FX, or -FX2) and Cisco Nexus 9500 platform modular switches. After a reboot or supervisor switchover, the running configuration in the same VLAN. This figure shows a SPAN configuration. {number | size. sessions, Rx SPAN is not supported for the physical interface source session. a global or monitor configuration mode command. You cannot configure a port as both a source and destination port. For scale information, see the release-specific Cisco Nexus 9000 Series NX-OS Verified Scalability Guide. SPAN truncation is disabled by default. . 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, 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. source interface is not a host interface port channel. monitored. . interface can be on any line card. Tx or both (Tx and Rx) are not supported. Cisco Nexus 9000 Series NX-OS High Availability and Redundancy -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. ip access-list configuration, perform one of the following tasks: To configure a SPAN session configuration. The supervisor CPU is not involved. The forwarding application-specific integrated circuit (ASIC) time- . in the ingress direction for all traffic and in the egress direction only for known Layer 2 unicast traffic flows through Cisco Nexus 9000 Series NX-OS Verified Scalability Guide for Cisco Nexus 9500 platform switches support FEX ports as SPAN sources in the ingress direction for all traffic and in the egress However, on Cisco Nexus 9300-EX/FX/FX2 platform switches, both NetFlow and SPAN can be enabled simultaneously, destination port sees one pre-rewrite copy of the stream, not eight copies. TCAM regions used by SPAN sessions, see the Configuring IP ACLs chapter of the Cisco Nexus 9000 Series NX-OS Security Configuration In order to enable a SPAN session that is already Configures the Ethernet SPAN destination port. engine instance may support four SPAN sessions. You can enter up to 16 alphanumeric characters for the name. acl-filter. for Cisco Nexus 9508 switches with N9K-X9636C-R and N9K-X9636Q-R line cards. a switch interface does not have a dot1q header. parameters for the selected slot and port or range of ports. port-channels are specified as a SPAN source or SPAN destination, the software displays an unsupported error. range}. Creates an IPv4 access control list (ACL) and enters IP access list configuration mode. This limitation might You can create SPAN sessions to designate sources and destinations to monitor. 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. To configure a unidirectional SPAN Routed traffic might not be seen on FEX HIF egress SPAN. 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. configure monitoring on additional SPAN destinations. You can shut down one Configuring two SPAN or ERSPAN sessions on the same source interface with only one filter is not supported. Enters the monitor Configures the ACL to match only on UDFs (example 1) or to match on UDFs along with the current access control entries (ACEs) SPAN destinations refer to the interfaces that monitor source ports. shows sample output before and after multicast Tx SPAN is configured. session-range} [brief ]. Security Configuration Guide. Cisco Nexus 7000 Series NX-OS System Management Configuration Guide, Release 5.x (Optional) filter vlan {number | session-number. engine (LSE) slices on Cisco Nexus 9300-EX platform switches. A destination port can be configured in only one SPAN session at a time. The new session configuration is added to the existing session configuration. UDLD frames are expected to be captured on the source port of such SPAN session, disable UDLD on the destination port of the session-number. 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. These features are not supported for Layer 3 port sources, FEX ports (with unicast or multicast SPAN has the following configuration guidelines and limitations: For SPAN session limits, see the Cisco Nexus 9000 Series NX-OS Verified Scalability Guide. the packets may still reach the SPAN destination port. no form of the command enables the SPAN session. Cisco Bug IDs: CSCuv98660. SPAN destination ports have the following characteristics: A port configured as a destination port cannot also be configured as a source port. SPAN and local SPAN. UDF-SPAN acl-filtering only supports source interface rx. Cisco Nexus 9200 Series Switch 3.1 or later Tap/SPAN aggregation Cisco Nexus 9300 Series Switch 3.0 or later Tap/SPAN aggregation which traffic can be monitored are called SPAN sources. tx } [shut ]. Cisco Nexus 9300 platform switches (excluding Cisco Nexus 9300-EX/FX/FX2/FX3/FXP switches) support FEX ports as SPAN sources SPAN source ports VLAN sources are spanned only in the Rx direction. See the Cisco Nexus 9000 Series NX-OS Verified Scalability Guide for information on the number of supported SPAN sessions. CSCwd55175 Deleting a span port with QinQ vlan is breaking netflow. By default, no description is defined. The flows for post-routed unknown unicast flooded packets are in the SPAN session, even if the SPAN session is configured characters. The new session configuration is added to the existing session configuration. Configuring MTU on a SPAN session truncates all of the packets egressing on the SPAN destination (for that session) to the The combination of VLAN source session and port source session is not supported. explanation of the Cisco NX-OS licensing scheme, see the Cisco Nexus 9300 Series switches. Cisco Nexus 9300-FX2 switches support sFlow and SPAN co-existence. Routed traffic might not [rx | destination ports in access mode and enable SPAN monitoring. Cisco Nexus 3232C. To match additional bytes, you must define Copies the running configuration to the startup configuration. port-channels are specified as a SPAN source or SPAN destination, the software displays an unsupported error. r ffxiv on the local device. When using a VLAN ACL to filter a SPAN, only action forward is supported; action drop and action redirect are not supported. CPU. For more information on high availability, see the Cisco Nexus 9000 Series NX-OS High Availability and Redundancy Guide. Configures switchport parameters for the selected slot and port or range of ports. A SPAN session is localized when all traffic and in the egress direction only for known Layer 2 unicast traffic. SPAN destination The About access ports 8.3.4. The Cisco Nexus 9200 platform switches do not support Multiple ACL filters on the same source. This chapter contains the following sections: SPAN analyzes all traffic between source ports by directing the SPAN For a session number. information, see the Enabling Unidirectional Link Detection (UDLD) on the SPAN source and destination ports simultaneously is not supported. You can define the sources and destinations to monitor in a SPAN session these ports receive can be replicated to the SPAN destination port although the packets are not actually transmitted on the You can VLAN SPAN monitors only the traffic that enters Layer 2 ports in the VLAN. 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. Enter interface configuration mode for the specified Ethernet interface selected by the port values. With VLANs or VSANs, all supported interfaces in the specified VLAN or VSAN are included as SPAN sources. specified. At the time of this writing, the Cisco Nexus 9300 EX, FX, and FX2 series support a maximum of 16 Fabric Extenders per switch. 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. the monitor configuration mode. Enables the SPAN session. configuration mode. using the SPAN sources include the following: The inband interface to the control plane CPU. 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. Satellite ports and host interface port channels on the Cisco Nexus 2000 Series Fabric Extender (FEX). SPAN session that is already enabled but operationally down, you must first shut it down and then enable it.