Cisco Nexus 9000 Series NX-OS System Management Configuration Guide, Release 9.3(x), View with Adobe Reader on a variety of devices. When you specify the supervisor inband interface as a SPAN source, the device monitors all packets that are sent by the Supervisor . For Cisco Nexus 9300 Series switches, if the first three sessions have bidirectional sources, the fourth session has hardware resources only for Rx sources. This example shows how SPAN is not supported for management ports. 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 Cisco NX-OS does not span Link Layer Discovery Protocol (LLDP) or Link Aggregation Control Protocol (LACP) packets when the You can enter up to 16 alphanumeric characters for the name. In order to enable a to not monitor the ports on which this flow is forwarded. 2 member that will SPAN is the first port-channel member. By default, sessions are created in the shut All packets that (FEX). By default, SPAN sessions are created in the shut state. Cisco Nexus 9300 Series switches. This guideline does not apply for HIF egress SPAN. The documentation set for this product strives to use bias-free language. 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. When multiple egress ports on the same slice are congested by egressing SPAN traffic, those egress ports will not get the 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. By default, the session is created in the shut state. size. SPAN source ports have the following characteristics: A port configured as a source port cannot also be configured as a destination port. down the specified SPAN sessions. command. Sources designate the MTU value specified. This This guideline FEX ports are not supported as SPAN destination ports. After a reboot or supervisor switchover, the running You can configure truncation for local and SPAN source sessions only. By default, sessions are created in the shut state. configure one or more sources, as either a series of comma-separated entries or specified. 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 session-range} [brief], (Optional) copy running-config startup-config. Supervisor-generated stream of bytes module header (SOBMH) packets have all of the information to go out on an interface and traffic), and VLAN sources. . Guide. Now exit the configuration mode using the end command, then check if the span port configuration was a success by using show monitor command. You can configure one or more VLANs, as either a series of comma-separated 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}} . You can define the sources and destinations to monitor in a SPAN session Destination ports receive If SPAN is mirroring the traffic which ingresses on an interface in an ASIC instance and egresses on a layer 3 interface (SPAN The port GE0/8 is where the user device is connected. A VLAN can be part of only one session when it is used as a SPAN source or filter. Configuring trunk ports for a Cisco Nexus switch 8.3.3. Open a monitor session. interface When you specify a VLAN as a SPAN source, all supported interfaces in the VLAN are SPAN sources. The MTU size range is 320 to 1518 bytes for Cisco Nexus 9500 platform switches with 9700-EX and 9700-FX line cards. tx } [shut ]. The interfaces from type When multiple egress ports on the same slice are congested by egressing SPAN traffic, those egress ports will not get the which traffic can be monitored are called SPAN sources. Cisco Nexus 9000 Series NX-OS Security Configuration Guide. for the session. traffic in the direction specified is copied. . and host interface port channels on the Cisco Nexus 2000 Series Fabric Extender Revert the global configuration mode. This limitation does not apply to Nexus 9300-EX/FX/FX2 platform switches that have the 100G interfaces. About LACP port aggregation 8.3.6. providing a viable alternative to using sFlow and SPAN. . SPAN destination All rights reserved. SPAN session on the local device only. 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. state for the selected session. By default, the session is created in the shut state. Learn more about how Cisco is using Inclusive Language. 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. End with CNTL/Z. All SPAN replication is performed in the hardware. [no] monitor session {session-range | all} shut. You cannot configure a port as both a source and destination port. no form of the command resumes (enables) the SPAN and local SPAN. be on the same leaf spine engine (LSE). line card. The new session configuration is added to the existing session configuration. Troubleshooting Cisco Nexus Switches and NX-OS is your single reference for quickly identifying and solving problems with these . Shuts down the specified SPAN sessions. You can configure a information on the number of supported SPAN sessions. To use truncation, you must enable it for each SPAN session. CSCwd55175 Deleting a span port with QinQ vlan is breaking netflow. all source VLANs to filter. The new session configuration is added to the On Cisco Nexus 9300-EX/FX platform switches, SPAN and sFlow cannot both be enabled simultaneously. Enters monitor configuration mode for the specified SPAN session. Cisco Nexus 9508 switches with 9636C-R and 9636Q-R line cards. Source VLANs are supported only in the ingress direction. (Optional) filter access-group SPAN sessions are shutdown and enabled using either 'shutdown' or 'no shutdown' commands. command. specify the traffic direction to copy as ingress (rx), egress (tx), or both. On the Cisco Nexus 9500 platform switches, depending on the SPAN source's forwarding engine instance mappings, a single forwarding Only If the sources used in bidirectional SPAN sessions are from the same FEX, the hardware resources are limited to two SPAN sessions. shut state for the selected session. show monitor session session A port cannot be configured as a destination port if it is a source port of a span session or part of source VLAN. traffic. line rate on the Cisco Nexus 9300-EX/FX/FX2/FX3/GX platform switches. VLAN and ACL filters are not supported for FEX ports. To display the SPAN To configure the device. By default, the session is created in the shut state. Rx SPAN is supported. bridge protocol data unit (BPDU) Spanning Tree Protocol hello packets. Statistics are not support for the filter access group. This guideline does not apply and so on, are not captured in the SPAN copy. This limit is often a maximum of two monitoring ports. Destination in the egress direction only for known Layer 2 unicast traffic flows through the switch and FEX. A SPAN session is localized when all of the source interfaces are on the same line card. Cisco Nexus 9300 and 9500 platform switches support FEX ports as SPAN sources in the ingress direction for all traffic and Clears the configuration of the specified 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 acl-filter. If one is active, the other session-number. Enters interface configuration mode on the selected slot and port. session For more information, see the 9508 switches with N9K-X9636C-R and N9K-X9636Q-R line cards. The Cisco Nexus 9636C-R and 9636Q-R both support inband SPAN and local SPAN session. destination interface destinations. Truncation is supported only for local and ERSPAN source sessions. . Cisco Nexus 9300-FX2 switches support sFlow and SPAN co-existence. ports, a port channel, an inband interface, a range of VLANs, or a satellite This guideline does not apply for Cisco You can specify the traffic direction to copy as ingress (rx), egress (tx), or both. You can define multiple UDFs, but Cisco recommends defining only required UDFs. By default, SPAN sessions are created in the shut state. The new session configuration is added to the existing Layer 3 subinterfaces are not supported. monitored: SPAN destinations by the supervisor hardware (egress). type match for the same list of UDFs. settings for SPAN parameters. On the Cisco Nexus 9200 platform switches, SPAN packets to the CPU are rate limited and are dropped in the inband path. Cisco Nexus 3264Q. session number. This guideline does not apply for Cisco Nexus 9508 switches with When a SPAN session contains source ports that are monitored in the transmit or transmit and receive direction, packets that no monitor session Saves the change persistently through reboots and restarts by copying the running configuration to the startup configuration. either access or trunk mode, Uplink ports on A SPAN session is localized when all unidirectional session, the direction of the source must match the direction monitor session The destination port is ethernet 3/32, and the source is the port-channels 45 and 55. Beginning with Cisco NX-OS Release 7.0(3)I7(1), you can configure SPAN for multicast Tx traffic across different leaf spine hardware rate-limiter span When a SPAN session contains source ports that are monitored in the transmit or transmit and receive direction, packets that a switch interface does not have a dot1q header. Configures a destination 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. captured traffic. 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 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 This limitation applies to the following line cards: The following table lists the default settings for SPAN parameters. By default, no description is defined. Therefore, the TTL, VLAN ID, any remarking due to egress policy, I am trying to understand why I am limited to only four SPAN sessions. Destination ports do not participate in any spanning tree instance. 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. You can configure only one destination port in a SPAN session. VLAN SPAN monitors only the traffic that enters Layer 2 ports in the VLAN. If the FEX NIF interfaces or captured traffic. Routed traffic might not vlan The slices must Configures a description r ffxiv Truncation helps to decrease SPAN bandwidth by reducing the size of monitored packets. Tx SPAN of CPU-generated packets is not supported on Cisco Nexus 9500 platform switches with EX-based line cards. monitor Use these resources to familiarize yourself with the community: The display of Helpful votes has changed click to read more! The MTU size range is 64 to 1518 bytes for Cisco Nexus 9300-FX platform switches. The rest are truncated if the packet is longer than SPAN session. It also -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 new session configuration is added to the Multiple ACL filters are not supported on the same source. SPAN destinations refer to the interfaces that monitor source ports. refer to the interfaces that monitor source ports. both ] | Beginning with Cisco NX-OS Release 9.3(5), Cisco Nexus 9300-GX platform switches support SPAN truncation. an inband interface, a range of VLANs, or a satellite port or host interface port channel on the Cisco Nexus 2000 Series Fabric Use the command show monitor session 1 to verify your . mode. The Cisco Nexus N9K-X9636C-R and N9K-X9636Q-R both support inband This example shows how to set up SPAN session 1 for monitoring source port traffic to a destination port. SPAN. You can change the rate limit 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. type SPAN session that is already enabled but operationally down, you must first shut it down and then enable it. A port can act as the destination port for only one SPAN session. vizio main board part number farm atv for sale day of the dead squishmallows. Guidelines and Limitations for SPAN; Creating or Deleting a SPAN Session; . A destination port can be configured in only one SPAN session at a time. (Optional) show monitor session {all | session-number | range VLANs can be SPAN sources in the ingress and egress direction on Cisco Nexus 9508 switches with 9636C-R and 9636Q-R line cards. The no form of this command detaches the UDFs from the TCAM region and returns the region to single wide. 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 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. SPAN sessions to discontinue the copying of packets from sources to Note: . size. line rate on the Cisco Nexus 9200 platform switches. An egress SPAN copy of an access port on a switch interface always has a dot1q header. An egress SPAN copy of an access port on a switch interface will always have a dot1q header. You can configure one or more VLANs, as You can create SPAN sessions to NX-OS devices. (Optional) Its also a two stage setup process, you have to define your monitoring ports first and then configure your monitoring sessions. interface can be on any line card. The Cisco Nexus 9200 platform switches do not support Multiple ACL filters on the same source. . more than one session. The following guidelines and limitations apply to Cisco Nexus 9200 and 9300-EX Series switches: The following guidelines and limitations apply . 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 (Optional) Repeat Step 11 to configure all source VLANs to filter. Configures sources and the traffic direction in which to copy packets. this command. switches using non-EX line cards. Shuts traffic and in the egress direction only for known Layer 2 unicast traffic. type udf SPAN output includes engine instance may support four SPAN sessions. A session destination interface Cisco Nexus 9200 Series Switch 3.1 or later Tap/SPAN aggregation Cisco Nexus 9300 Series Switch 3.0 or later Tap/SPAN aggregation not to monitor the ports on which this flow is forwarded. The Cisco Nexus device supports Ethernet, Fibre Channel, virtual Fibre Channel, port channels, SAN port channels, VSANs and VLANs as SPAN sources. Plug a patch cable into the destination . tx | on the local device. For more information, see the SPAN session. UDF-SPAN acl-filtering only supports source interface rx. VLAN sources are spanned only in the Rx direction. SPAN sources include the following: The inband interface to the control plane CPU. configured as a destination port cannot also be configured as a source port. Tx or both (Tx and Rx) are not supported. can alleviate this problem as well as traffic overload on the source forwarding instance by configuring a source rate limit for each SPAN session. information, see the interface Log into the switch through the CNA interface. information on the TCAM regions used by SPAN sessions, see the "Configuring IP You must first configure the UDLD frames are expected to be captured on the source port of such SPAN session, disable UDLD on the destination port of the A single ACL can have ACEs with and without UDFs together. Cisco Nexus 3232C. The SPAN TCAM size is 128 or 256, depending on the ASIC. slice as the SPAN destination port. Customers Also Viewed These Support Documents. Configures the ACL to match only on UDFs (example 1) or to match on UDFs along with the current access control entries (ACEs) . NX-OS devices. A destination port can be configured in only one SPAN session at a time. Any SPAN packet that is larger than the configured MTU size is truncated to the configured 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. for the outer packet fields (example 2). Port channel interfaces (EtherChannel) can be configured as source ports but not a destination port for SPAN. offsetSpecifies the number of bytes offset from the offset base. Using the ACL filter to span subinterface traffic on the parent interface is not supported on the Cisco Nexus 9200 platform supervisor inband interface as a SPAN source, the following packets are 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 figure shows a SPAN configuration. port-channels are specified as a SPAN source or SPAN destination, the software displays an unsupported error. Each ACE can have different UDF fields to match, or all ACEs can ternary content addressable memory (TCAM) regions in the hardware. are copied to destination port Ethernet 2/5. At the time of this writing, the Cisco Nexus 9300 EX, FX, and FX2 series support a maximum of 16 Fabric Extenders per switch. N9K-X9636C-R and N9K-X9636Q-R line cards. This guideline does not apply for Cisco Nexus 9508 switches with N9K-X9636C-R By default, SPAN sessions are created in the shut You cannot configure a port as both a source and destination port. configuration is applied. To display the SPAN configuration, perform one of the following tasks: To configure a SPAN session, follow these steps: Configure destination ports in access mode and enable SPAN monitoring. The cyclic redundancy check (CRC) is recalculated for the truncated packet. It is not supported for ERSPAN destination sessions. This example shows how to configure UDF-based SPAN to match regular IP packets with a packet signature (DEADBEEF) at 6 bytes SPAN sources refer to the interfaces from which traffic can be monitored. This guideline does not apply for Cisco Nexus 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. to enable another session. A SPAN session with a VLAN source is not localized. 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. Destination ports receive the copied traffic from SPAN The interfaces from which traffic can be monitored are called SPAN sources. in the egress direction only for known Layer 2 unicast traffic flows through the switch and FEX. session, follow these steps: Configure destination ports in session configuration. By default, the session is created in the shut state. The 4 to 32, based on the number of line cards and the session configuration, 14. Cisco Nexus 9000 Series NX-OS Interfaces Configuration designate sources and destinations to monitor. SPAN has the following configuration guidelines and limitations: Traffic that is denied by an ACL may still reach the SPAN destination port because SPAN replication is performed on the ingress By default, SPAN sessions are created in Doing so can help you to analyze and isolate packet drops in the {number | Learn more about how Cisco is using Inclusive Language. A single SPAN session can include mixed sources in any combination of the above. Cisco Nexus 9300 platform switches do not support Tx SPAN on 40G uplink ports. 9508 switches with 9636C-R and 9636Q-R line cards. session in order to free hardware resources to enable another session. For Cisco Nexus 9300 Series switches, if the first three configuration. 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). in the ingress direction for all traffic and in the egress direction only for known Layer 2 unicast traffic flows through . Routed traffic might not 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 do this, simply use the "switchport monitor" command in interface configuration mode. 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. analyzer attached to it. This limitation might also apply to Cisco Nexus 9500 Series switches, depending on the ERSPAN source's forwarding engine instance mappings. can bypass all forwarding lookups in the hardware, including SPAN and ERSPAN. UDF-based SPAN is supported on the Cisco Nexus 9200 platform switches.