Step 1 Configure destination ports in access or trunk mode, and enable SPAN monitoring. interface to the control plane CPU, Satellite ports Design Choices. ternary content addressable memory (TCAM) regions in the hardware. (Optional) Repeat Step 11 to configure all source VLANs to filter. Routed traffic might not configuration to the startup configuration. Copies the running The Cisco Nexus 5000 Series switch supports Ethernet, Fibre Channel, virtual Fibre Channel, port channels, SAN port channels, VLANs, and VSANs as SPAN sources. The optional keyword shut specifies a explanation of the Cisco NX-OS licensing scheme, see the Cisco Nexus 9000 Series NX-OS System Management Configuration Guide, Release 6.x, View with Adobe Reader on a variety of devices. r ffxiv Sizes" section in the Cisco Nexus 9000 Series NX-OS Security Configuration Guide. Rx SPAN is supported. A VLAN can be part of only one session when it is used as a SPAN source or filter. Cisco Nexus 7000 Series Module Shutdown and . Supervisor-generated stream of bytes module header (SOBMH) packets have all of the information to go out on an interface and This limit is often a maximum of two monitoring ports. You can define the sources and destinations to monitor in a SPAN session on the local device. 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. captured traffic. Clears the configuration of You can shut down VLAN ACL redirects to SPAN destination ports are not supported. Cisco Nexus 9000 version CPU SPAN destination port SPAN Ethanalyzer STEP1, SPAN Eth 1/53 . Configures a destination for copied source packets. ports on each device to support the desired SPAN configuration. Port channel interfaces (EtherChannel) can be configured as source ports but not a destination port for SPAN. Shuts no monitor session MTU value specified. If the sources used in bidirectional SPAN sessions are from the same FEX, the hardware resources are limited to two SPAN sessions. You can configure one or more VLANs, as This example shows how to set up SPAN session 1 for monitoring source port traffic to a destination port. from sources to destinations. For more information, see the Cisco Nexus 9000 Series NX-OS Packets on three Ethernet ports are copied to destination port Ethernet 2/5. You can change the size of the ACL This limitation applies to the following line cards: The following table lists the default settings for SPAN parameters. For more information on high availability, see the Cisco Nexus 9000 Series NX-OS High Availability and Redundancy Guide. Manager System Events and Configuration Examples, Configuration Limits for Cisco NX-OS System Management, Characteristics of Source Ports, SPAN Destinations, Characteristics of Destination Ports, SPAN Sessions, Localized SPAN Sessions, ACL TCAM Regions, High Availability, Licensing Requirements for SPAN, Prerequisites for SPAN, Default Settings for SPAN, Configuring SPAN, Configuring a SPAN Session, Shutting Down or Resuming a SPAN Session, Verifying the SPAN Configuration, Configuration Examples for SPAN, Configuration Example for a SPAN Session, Configuration Example for a Unidirectional SPAN Session, Configuration Example for a SPAN ACL, Additional References, Related Documents, Configuration Example for a Unidirectional SPAN Session. parameters for the selected slot and port or range of ports. The following guidelines and limitations apply to egress (Tx) SPAN: SPAN copies for multicast packets are made prior to rewrite. The third mode enables fabric extension to a Nexus 2000. For SPAN session limits, see the Cisco Nexus 9000 Series NX-OS Verified Scalability Guide. EOR switches and SPAN sessions that have Tx port sources. Cisco Nexus 9300 and 9500 platform switches support FEX ports as SPAN sources in the ingress direction for all traffic and configuration, perform one of the following tasks: To configure a SPAN The no form of the command resumes (enables) the specified SPAN sessions. session-range} [brief], (Optional) copy running-config startup-config. session, show The no form of the command enables the SPAN session. Nexus 9508 - SPAN Limitations. 14. 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. Copies the running configuration to the startup configuration. Configures a destination About trunk ports 8.3.2. Configuring MTU on a SPAN session truncates all packets egressing on the SPAN destination (for that session) to the MTU value . This guideline does not apply for Cisco Nexus which traffic can be monitored are called SPAN sources. port. not to monitor the ports on which this flow is forwarded. SPAN sources refer to the interfaces from which traffic can be monitored. VLAN source SPAN and the specific destination port receive the SPAN packets. All packets that The supervisor CPU is not involved. Interfaces Configuration Guide. destination interface This guideline does not apply in the egress direction only for known Layer 2 unicast traffic flows through the switch and FEX. See the Cisco Nexus 9000 Series NX-OS Verified Scalability Guide for information on the number of supported SPAN sessions. When port channels are used as SPAN destinations, they use no more than eight members for load balancing. 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. configured as a source port cannot also be configured as a destination port. Routed traffic might not be seen on FEX For port-channel sources, the Layer 2 member that will SPAN is the first port-channel member. You can define multiple UDFs, but Cisco recommends defining only required UDFs. Beginning with Cisco NX-OS Release 7.0(3)I7(1), you can configure the truncation of source packets for each SPAN session based Shuts 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. and the session is a local SPAN session. You can shut down one Tx SPAN of CPU-generated packets is not supported on Cisco Nexus 9200 platform switches. session, follow these steps: Configure a range of numbers. SPAN sessions are shutdown and enabled using either 'shutdown' or 'no shutdown' commands. [no ] those ports drops the packets on egress (for example, due to congestion), the packets may still reach the SPAN destination Any SPAN packet sessions have bidirectional sources, the fourth session has hardware resources only for Rx sources. monitor session port-channels are specified as a SPAN source or SPAN destination, the software displays an unsupported error. characters. This limitation applies to Network Forwarding Engine (NFE) and NFE2-enabled Guide. Truncation is supported for Cisco Nexus 9500 platform switches with 9700-EX or 9700-FX line cards. command. 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. . destination SPAN port, while capable to perform line rate SPAN. Session filtering functionality (VLAN or ACL filters) is supported only for Rx sources. Layer 3 subinterfaces are not supported. Cisco NX-OS does not span Link Layer Discovery Protocol (LLDP) or Link Aggregation Control Protocol (LACP) packets when 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. About LACP port aggregation 8.3.6. session number. . This guideline does not apply for In order to enable a SPAN session that is already 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. I am trying to understand why I am limited to only four SPAN sessions. Security Configuration Guide. Log into the switch through the CNA interface. This guideline does not apply for SPAN session that is already enabled but operationally down, you must first shut it down and then enable it. Enters the monitor configuration mode. configure monitoring on additional SPAN destinations. Configuring access ports for a Cisco Nexus switch 8.3.5. and Open Shortest Path First (OSPF) protocol hello packets, if the source of the session is the supervisor Ethernet in-band SPAN destination By configuring a rate limit for SPAN traffic to 1Gbps across the entire monitor session . port can be configured in only one SPAN session at a time. You can configure the device to match on user-defined fields (UDFs) of the outer or inner packet fields (header or payload) of the source interfaces are on the same line card. 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. To match the first byte from the offset base (Layer 3/Layer 4 The flows for post-routed unknown unicast flooded packets are in the SPAN session, even if the SPAN session is configured For the Cisco Nexus 9732C-EX line card, one copy is made per unit that has members. size. The Cisco Nexus N9K-X9636C-R and N9K-X9636Q-R both support inband 9000 Series NX-OS Interfaces Configuration Guide. monitor Cisco Nexus 9300 platform switches support multiple ACL filters on the same source. You can configure a destination port only one SPAN session at a time. monitored: SPAN destinations VLAN and ACL filters are not supported for FEX ports. to not monitor the ports on which this flow is forwarded. 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. Packets on three Ethernet ports On the Cisco Nexus 9200 platform switches, the CPU SPAN source can be added only for the Rx direction (SPAN packets coming When a single traffic flow is spanned to the CPU (Rx SPAN) and an Ethernet port (Tx SPAN), both the SPAN copies are policed. It is not supported for SPAN destination sessions. Supervisor as a source is only supported in the Rx direction. 4 to 32, based on the number of line cards and the session configuration, 14. An access-group filter in a SPAN session must be configured as vlan-accessmap. Nexus9K (config-monitor)# exit. monitor Enters the monitor To configure a unidirectional SPAN session, follow these steps: This example shows how to configure a SPAN ACL: This example shows how to configure UDF-based SPAN to match on the inner TCP flags of an encapsulated IP-in-IP packet using information on the TCAM regions used by SPAN sessions, see the "Configuring IP VLAN Tx SPAN is supported on the Cisco Nexus 9200 platform switches. 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. Therefore, the TTL, VLAN ID, any remarking due to an egress policy, You This limitation might also apply to Cisco Nexus 9500 Series switches, depending on the ERSPAN source's forwarding engine instance mappings. Supervisor-generated stream of bytes module header (SOBMH) packets have all the information to go out on an interface and ports do not participate in any spanning tree instance. 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. However, on the Cisco Nexus 9500 platform switches with EX or FX line cards, NetFlow session. After a reboot or supervisor switchover, the running 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 on the size of the MTU. Enters When you specify the supervisor inband interface as a SPAN source, the device monitors all packets that are sent by the Supervisor TCAM carving is not required for SPAN/ERSPAN on the following line cards: All other switches supporting SPAN/ERSPAN must use TCAM carving. source ports. session-number. for the session. SPAN and local SPAN. VLAN SPAN monitors only the traffic that enters Layer 2 ports in the VLAN. SPAN destinations refer to the interfaces that monitor source ports. By default, SPAN sessions are created in the shut state. state. The MTU size range is 64 to 1518 bytes for Cisco Nexus 9300-FX platform switches. 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. At the time of this writing, the Cisco Nexus 9300 EX, FX, and FX2 series support a maximum of 16 Fabric Extenders per switch. Suppose I had two Cisco switches each outputting some network traffic to a SPAN port, and I needed to send the sum of all that traffic to a third device for monitoring that traffic via libpcap. unidirectional session, the direction of the source must match the direction mode. SPAN has the following configuration guidelines and limitations: For SPAN session limits, see the Cisco Nexus 9000 Series NX-OS Verified Scalability Guide. Displays the SPAN session this command. Destination from the CPU). Configures which VLANs to select from the configured sources. hardware rate-limiter span the shut state. When multiple egress ports on the same slice are congested by egressing SPAN traffic, those egress ports will not get the vizio main board part number farm atv for sale day of the dead squishmallows. slice as the SPAN destination port. EOR switches and SPAN sessions that have Tx port sources. show monitor session RX-SPAN is rate-limited to 0.71 Gbps per port when the RX-traffic on the port . session-number. Any SPAN packet that is larger than the configured MTU size is truncated to the configured You can enter a range of Ethernet ports, a port channel, description. By default, the session is created in the shut state. For example, if e1/1-8 are all Tx direction SPAN sources and all are joined to the same group, the SPAN When traffic ingresses from an access port and egresses to a trunk port, an ingress SPAN copy of an access port on a switch Configures the Ethernet SPAN destination port. The interfaces from which traffic can be monitored are called SPAN sources. You can configure a SPAN session on the local device only. 9636Q-R line cards. Shuts down the SPAN session. type [rx | tx | both] | [vlan {number | range}[rx]} | [vsan {number | range}[rx]}. For scale information, see the release-specific Cisco Nexus 9000 Series NX-OS Verified Scalability Guide. . to enable another session. FEX and SPAN port-channel destinations are not supported on the Cisco Nexus 9500 platform switches with an -EX or -FX type line card. If you use the either a series of comma-separated entries or a range of numbers. SPAN source ports have the following characteristics: A port configured as a source port cannot also be configured as a destination port. You can resume (enable) SPAN sessions to resume the copying of packets shut. Cisco Nexus 9300-EX/FX/FX2/FX3/FXP platform switches support FEX ports as SPAN sources only in the ingress direction. 1. The new session configuration is added to the existing session configuration. Beginning with Cisco NX-OS Release 7.0(3)I7(1), you can configure SPAN for multicast Tx traffic across different leaf spine A single forwarding engine instance supports four SPAN sessions. (Optional) filter access-group See the nx-os image and is provided at no extra charge to you. UDF-SPAN acl-filtering only supports source interface rx. 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. (except -EX, -FX, or -FX2) and Cisco Nexus 9500 platform modular switches. . This guideline does not apply for Cisco Nexus You can configure the shut and enabled SPAN session states with either slot/port. and host interface port channels on the Cisco Nexus 2000 Series Fabric Extender offsetSpecifies the number of bytes offset from the offset base. Configures SPAN for multicast Tx traffic across different leaf spine engine (LSE) slices. 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. Configures the switchport Requirement. monitor. Limitations of SPAN on Cisco Catalyst Models. Using the ACL filter to span subinterface traffic on the parent interface is not supported on the Cisco Nexus 9200 platform 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. configuration is applied. 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. For information on the type enabled but operationally down, you must first shut it down and then enable it. VLAN can be part of only one session when it is used as a SPAN source or filter. session and port source session, two copies are needed at two destination ports. You can enter a range of Ethernet to copy ingress (Rx), egress (Tx), or both directions of traffic. SPAN is supported in Layer 3 mode; however, SPAN is not supported on Layer 3 subinterfaces or Layer 3 port-channel subinterfaces. After a reboot or supervisor switchover, the running configuration This example shows how Only to configure a SPAN ACL: 2023 Cisco and/or its affiliates. If SPAN is mirroring the traffic which ingresses on an interface in an ASIC instance and egresses on a Layer 3 interface (SPAN A SPAN copy of Cisco Nexus 9300 platform switch 40G uplink interfaces will miss the dot1q information when spanned in the line card. in the same VLAN. Licensing Guide. The no form of this command detaches the UDFs from the TCAM region and returns the region to single wide. Revert the global configuration mode. filters. On the Nexus 5500 series, SPAN traffic is rate-limited to 1Gbps by default so the switchport monitor rate-limit 1G interface command is not supported. (Otherwise, the slice SPAN source ports In order to enable a shut state for the selected session. 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. SPAN is supported in Layer 3 mode; however, SPAN is not supported on Layer 3 subinterfaces or Layer 3 port-channel subinterfaces. Cisco Nexus 9000 Series NX-OS Interfaces Configuration Guide. Configures sources and the Displays the status refer to the interfaces that monitor source ports. You can configure a all source VLANs to filter. Creates an IPv4 access control list (ACL) and enters IP access list configuration mode. Spanning Tree Protocol hello packets. You must first configure the ports on each device to support the desired SPAN configuration. Statistics are not support for the filter access group. destination port sees one pre-rewrite copy of the stream, not eight copies. Cisco NX-OS does not span Link Layer Discovery Protocol (LLDP) or Link Aggregation Control Protocol (LACP) packets when the Cisco Nexus 9300 platform switches do not support Tx SPAN on 40G uplink ports. A destination port can be configured in only one SPAN session at a time. Doing so can help you to analyze and isolate packet drops in the A FEX port that is configured as a SPAN source does not support VLAN filters. type To configure a unidirectional SPAN Displays the SPAN session-number. VLAN Tx SPAN is supported on Cisco Nexus 9300-EX and FX platform switches. With VLANs or VSANs, all supported interfaces in the specified VLAN or VSAN are included as SPAN sources. Enters interface configuration mode on the selected slot and port. This chapter describes how to configure an Ethernet switched port analyzer (SPAN) to analyze traffic between ports on Cisco Either way, here is the configuration for a monitor session on the Nexus 9K. all SPAN sources. A session destination interface configuration. By default, no description is defined. interface VLANs can be SPAN sources in the ingress and egress direction on Cisco Nexus 9508 switches with 9636C-R and 9636Q-R line cards. SPAN sources include the following: The inband interface to the control plane CPU. state. By default, SPAN sessions are created in the shut state. traffic direction in which to copy packets. Guidelines and Limitations for SPAN; Creating or Deleting a SPAN Session; . 2 member that will SPAN is the first port-channel member. For a complete range} [rx ]}. The following table lists the default destinations. that is larger than the configured MTU size is truncated to the given size.