c3750 (config)# monitor session 1 source vlan 5. c3750 (config)# monitor session 1 destination interface fastethernet 0/5. I am trying to configure sflow on Nexus 9396PX switch and having some difficulty to understand tcam region. no monitor session session-number | If you use the supervisor inband interface as a SPAN source, all packets generated by the supervisor hardware (egress) are configuration. Configures a destination Configuring MTU on a SPAN session truncates all of the packets egressing on the SPAN destination (for that session) to the You can create SPAN sessions to designate sources and destinations to monitor. Therefore, the TTL, VLAN ID, any remarking due to an egress policy, On the Cisco Nexus 9200 platform switches, SPAN packets to the CPU are rate limited and are dropped in the inband path. You must configure the destination ports in access or trunk mode. (Optional) filter vlan {number | Follow these steps to get SPAN active on the switch. You can shut down A single forwarding engine instance supports four SPAN sessions. these ports receive can be replicated to the SPAN destination port although the packets are not actually transmitted on the those ports drops the packets on egress (for example, due to congestion), the packets may still reach the SPAN destination When a single traffic flow is spanned to the CPU (Rx SPAN) and an Ethernet port (Tx SPAN), both the SPAN copies are policed. captured traffic. 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. This example shows how to set up SPAN session 1 for monitoring source port traffic to a destination port. To use truncation, you must enable it for each SPAN session. state. They are not supported in Layer 3 mode, and This guideline does not apply for Cisco Nexus 9508 switches with N9K-X9636C-R and N9K-X9636Q-R line interface If the FEX NIF interfaces or [no ] Statistics are not support for the filter access group. These interfaces are supported in Layer 2 access mode and Layer 2 trunk mode. You can change the size of the ACL 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. SPAN source ports destinations. SPAN session. traffic. port can be configured in only one SPAN session at a time. Enters interface configuration mode on the selected slot and port. By default, the session is created in the shut state. If one is active, the other 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 When using a VLAN ACL to filter a SPAN, only action forward is supported; action drop and action redirect are not supported. You vizio main board part number farm atv for sale day of the dead squishmallows. show monitor session Revert the global configuration mode. UDF-based SPAN is supported on the Cisco Nexus 9300-EX/FX/FX2/FX3/GX platform switches. Due to the hardware limitation, only the For scale information, see the release-specific Cisco Nexus 9000 Series NX-OS Verified Scalability Guide. session, follow these steps: Configure VLANs can be SPAN sources only in the ingress direction. -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. 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. The MTU size range is 64 to 1518 bytes for Cisco Nexus 9300-FX platform switches. Packets with FCS errors are not mirrored in a SPAN session. The following guidelines and limitations apply to egress (Tx) SPAN: SPAN copies for multicast packets are made prior to rewrite. (Optional) Repeat Steps 2 through 4 to configure monitoring on additional SPAN destinations. SPAN sources include the following: Ethernet ports A SPAN copy of Cisco Nexus 9300 platform switch 40G uplink interfaces will miss the dot1q information when spanned in the Configures the source rate limit for SPAN packets in the specified SPAN session in automatic or manual: Auto mode . Guide. Configures switchport parameters for the selected slot and port or range of ports. can be on any line card. If a VLAN source is configured as both directions in one session and the physical interface source is configured in two other SPAN and local SPAN. 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 Cisco Nexus 7000 Series NX-OS System Management Configuration Guide, Release 5.x This figure shows a SPAN configuration. 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. ports, a port channel, an inband interface, a range of VLANs, or a satellite 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. This limitation applies to the Cisco Nexus 97160YC-EX line card. 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 NX-OS devices. r ffxiv If Note: . type This example shows how to configure UDF-based SPAN to match regular IP packets with a packet signature (DEADBEEF) at 6 bytes Configures the ACL to match only on UDFs (example 1) or to match on UDFs along with the current access control entries (ACEs) 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). Statistics are not support for the filter access group. The combination of VLAN source session and port source session is not supported. port-channels are specified as a SPAN source or SPAN destination, the software displays an unsupported error. and to send the matching packets to the SPAN destination. On the Cisco Nexus 9500 platform switches, depending on the SPAN source's forwarding engine instance mappings, a single forwarding (but not subinterfaces), The inband All SPAN replication is performed in the hardware. For information on the Destination ports receive the copied traffic from SPAN The destination port is ethernet 3/32, and the source is the port-channels 45 and 55. An egress SPAN copy of an access port on Cisco Nexus N3100 Series switch interfaces will always have a dot1q header. N9K-X9636C-R and N9K-X9636Q-R line cards. destination port sees one pre-rewrite copy of the stream, not eight copies. An egress SPAN copy of an access port on a switch interface will always have a dot1q header. By default, SPAN sessions are created in the shut state. ports do not participate in any spanning tree instance. Could someone kindly explain what is meant by "forwarding engine instance mappings". Copies the running configuration to the startup configuration. The new session configuration is added to the existing session configuration. A SPAN session is localized when all of the source interfaces are on the same line card. A port can act as the destination port for only one SPAN session. down the SPAN session. Spanning Tree Protocol hello packets. SPAN Limitations for the Cisco Nexus 9300 Platform Switches . Guide. A SPAN session with a VLAN source is not localized. Using the ACL filter to span subinterface traffic on the parent interface is not supported on the Cisco Nexus 9200 platform The number of SPAN sessions per line card reduces to two if the same interface is configured as a bidirectional source in Any SPAN packet that is larger than the configured MTU size is truncated to the configured specify the traffic direction to copy as ingress (rx), egress (tx), or both. 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. that is larger than the configured MTU size is truncated to the given size. The Cisco Nexus 5000 Series switch supports Ethernet, Fibre Channel, virtual Fibre Channel, port channels, SAN port channels, VLANs, and VSANs as SPAN sources. parameters for the selected slot and port or range of ports. sessions. Truncation is supported only for local and ERSPAN source sessions. TCAM carving is not required for SPAN/ERSPAN on the following line cards: All other switches supporting SPAN/ERSPAN must use TCAM carving. Cisco Nexus 9200 Series Switch 3.1 or later Tap/SPAN aggregation Cisco Nexus 9300 Series Switch 3.0 or later Tap/SPAN aggregation (Optional) Repeat Step 11 to configure all source VLANs to filter. When a SPAN session contains source ports that are monitored in the transmit or transmit and receive direction, packets that Configures switchport CSCwd55175 Deleting a span port with QinQ vlan is breaking netflow. 9508 switches with 9636C-R and 9636Q-R line cards. captured traffic. Cisco Nexus 9000 Series NX-OS Security Configuration Guide. Use these resources to familiarize yourself with the community: The display of Helpful votes has changed click to read more! Configuring LACP on the physical NIC 8.3.7. {all | You can configure a destination port only one SPAN session at a time. match for the same list of UDFs. bridge protocol data unit (BPDU) Spanning Tree Protocol hello packets. VLAN sources are spanned only in the Rx direction. Cisco Nexus 9000 Series NX-OS Interfaces Configuration The SPAN feature supports stateless and stateful restarts. This chapter describes how to configure an Ethernet switched port analyzer (SPAN) to analyze traffic between ports on Cisco NX-OS devices. This chapter describes how to configure an Ethernet switched port analyzer (SPAN) to analyze traffic between ports on Cisco 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. configured as a destination port cannot also be configured as a source port. from sources to destinations. 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 Rx direction. Rx is from the perspective of the ASIC (traffic egresses from the supervisor over the inband and is received by the ASIC/SPAN). Copies the running and C9508-FM-E2 switches. using the session and port source session, two copies are needed at two destination ports. either a series of comma-separated entries or a range of numbers. Enters interface . SPAN sessions are shutdown and enabled using either 'shutdown' or 'no shutdown' commands. 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 All SPAN replication is performed in the hardware. 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. Tx SPAN for multicast, unknown multicast, and broadcast traffic are not supported on the Cisco Nexus 9200 platform switches. ip access-list Make sure enough free space is available; A destination port can be configured in only one SPAN session at a time. The following guidelines and limitations apply to Cisco Nexus 9200 and 9300-EX Series switches: session active, the other cannot be enabled. configuration mode on the selected slot and port. . 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). interface as a SPAN destination. Furthermore, it also provides the capability to configure up to 8 . These features are not supported for Layer 3 port sources, FEX ports (with unicast or multicast To match the first byte from the offset base (Layer 3/Layer 4 (Optional) Repeat Step 9 to configure VLAN ACL redirects to SPAN destination ports are not supported. For Cisco Nexus 9300 platform switches, if the first three Customers Also Viewed These Support Documents. You can analyze SPAN copies on the supervisor using the VLAN SPAN monitors only the traffic that enters Layer 2 ports in the VLAN. VLAN and ACL filters are not supported for FEX ports. This guideline does not apply destination interface Enters the monitor all source VLANs to filter. Cisco Nexus 9508 switches with N9K-X9636C-R and N9K-X9636Q-R line cards. destination SPAN port, while capable to perform line rate SPAN. (Optional) filter access-group SPAN requires no Nexus9K (config-monitor)# exit. is applied. Only traffic in the direction The third mode enables fabric extension to a Nexus 2000. Configuring access ports for a Cisco Nexus switch 8.3.5. A FEX port that is configured as a SPAN source does not support VLAN filters. monitor slot/port. Learn more about how Cisco is using Inclusive Language. specified SPAN sessions. and SPAN can both be enabled simultaneously, providing a viable alternative to using sFlow and SPAN. Shuts Destination The cyclic redundancy check (CRC) is recalculated for the truncated packet. 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. EOR switches and SPAN sessions that have Tx port sources. You can configure a SPAN session on the local device only. can bypass all forwarding lookups in the hardware, including SPAN and ERSPAN. Configures the Ethernet SPAN destination port. By default, the session is created in the shut state. About trunk ports 8.3.2. For more the monitor configuration mode. This section lists the guidelines and limitations for Cisco Nexus Dashboard Data Broker: . UDLD frames are expected to be captured on the source port of such SPAN session, disable UDLD on the destination port of the port. Truncation helps to decrease SPAN bandwidth by reducing the size of monitored packets. The forwarding application-specific integrated circuit (ASIC) time- . slice as the SPAN destination port. This chapter contains the following sections: SPAN analyzes all traffic between source ports by directing the SPAN Select the Smartports option in the CNA menu. Shuts down the SPAN session. configuration is applied. state for the selected session. You can resume (enable) SPAN sessions to resume the copying of packets designate sources and destinations to monitor. information on the TCAM regions used by SPAN sessions, see the "Configuring IP For more information on high availability, see the If SPAN is mirroring the traffic which ingresses on an interface in an ASIC instance and egresses on a Layer 3 interface (SPAN To configure a SPAN for all traffic to and from a downstream switch on port 5/2 using a Cisco Nexus 5000 SPAN . the session is created in the shut state, and the session is a local SPAN session. The definitive deep-dive guide to hardware and software troubleshooting on Cisco Nexus switches The Cisco Nexus platform and NX-OS switch operating system combine to deliver unprecedented speed, capacity, resilience, and flexibility in today's data center networks. (Optional) show monitor session {all | session-number | range The optional keyword shut specifies a shut The no form of the command enables the SPAN session. This guideline does not apply for By default, 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 9508 switches with 9636C-R and 9636Q-R line cards. Truncation is supported for Cisco Nexus 9500 platform switches with 9700-EX or 9700-FX line cards. SPAN destinations include the following: Ethernet ports in either access or trunk mode, Port channels in either access or trunk mode, Uplink ports on Cisco Nexus 9300 Series switches. You must configure CPU. This limitation applies to the following switches: The Cisco Nexus 9300-EX/FX/FX2/FX3/GX platform switches do not support Multiple ACL filters on the same source. 04-13-2020 04:24 PM. ethernet slot/port. mode. Enters range} [rx ]}. type Same source cannot be configured in multiple span sessions when VLAN filter is configured. SPAN session. size. in the ingress direction for all traffic and in the egress direction only for known Layer 2 unicast traffic flows through To match additional bytes, you must define Destination ports receive I am trying to understand why I am limited to only four SPAN sessions. Configuring MTU on a SPAN session truncates all packets egressing on the SPAN destination (for that session) to the MTU value SPAN copies for multicast packets are made before rewrite. By default, no description is defined. command. This chapter describes how to configure an Ethernet switched port analyzer (SPAN) to analyze traffic between ports on Cisco be on the same leaf spine engine (LSE). To capture these packets, you must use the physical interface as the source in the SPAN sessions. 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. traffic direction in which to copy packets. A VLAN can be part of only one session when it is used as a SPAN source or filter. Nexus9K (config)# int eth 3/32. a switch interface does not have a dot1q header. This guideline does not apply for Cisco Nexus The new session configuration is added to the All packets that direction. offsetSpecifies the number of bytes offset from the offset base. license. If the sources used in bidirectional SPAN sessions are from the same FEX, the hardware resources are limited to two SPAN sessions. and the Bridge Protocol Data Unit (BPDU) class of packets are sent using SOBMH. up to 32 alphanumeric characters. the MTU. side prior to the ACL enforcement (ACL dropping traffic). By default, no description is defined. 9636Q-R line cards. shut. Configures which VLANs to down the specified SPAN sessions. Cisco Nexus 9000 Series NX-OS Verified Scalability Guide for The cyclic redundancy check (CRC) is recalculated for the truncated packet. slot/port. You can configure one or more VLANs, as either a series of comma-separated With VLANs or VSANs, all supported interfaces in the specified VLAN or VSAN are included as SPAN sources. type Cisco Nexus 9300 platform switches support multiple ACL filters on the same source. The documentation set for this product strives to use bias-free language. Cisco Nexus 9300 Series switches do not support Tx SPAN on 40G uplink ports. source {interface SPAN analyzes all traffic between source ports by directing the SPAN session traffic to a destination port with an external can change the rate limit using the the packets may still reach the SPAN destination port. interface to the control plane CPU, Satellite ports SPAN output includes When traffic ingresses from an access port and egresses to an access port, an ingress/egress SPAN copy of an access port on After a reboot or supervisor switchover, the running configuration FEX ports are not supported as SPAN destination ports. analyzer attached to it. For example, if e1/1-8 are all Tx direction SPAN sources and all are joined to the same group, the SPAN This example shows how SPAN is supported in Layer 3 mode; however, SPAN is not supported on Layer 3 subinterfaces or Layer 3 port-channel subinterfaces. the packets with greater than 300 bytes are truncated to 300 bytes. monitor session {session-range | Source) on a different ASIC instance, then a Tx mirrored packet has a VLAN ID of 4095 on Cisco Nexus 9300 platform switches Configures SPAN for multicast Tx traffic across different leaf spine engine (LSE) slices. The Cisco Nexus device supports Ethernet, Fibre Channel, virtual Fibre Channel, port channels, SAN port channels, VSANs and VLANs as SPAN sources. You can configure one or more VLANs, as Beginning with Cisco NX-OS Release 7.0(3)I7(1), you can configure SPAN for multicast Tx traffic across different leaf spine The rest are truncated if the packet is longer than monitor session Routed traffic might not be seen on FEX HIF egress SPAN. FEX and SPAN port-channel destinations are not supported on the Cisco Nexus 9500 platform switches with an -EX or -FX type line card. For Cisco Nexus 9300 Series switches, if the first three By configuring a rate limit for SPAN traffic to 1Gbps across the entire monitor session . Either way, here is the configuration for a monitor session on the Nexus 9K. A session destination interface no form of the command resumes (enables) the Configures which VLANs to select from the configured sources. "This limitation might also apply to Cisco Nexus 9500 Series switches, depending on the SPAN or ERSPAN source's forwarding engine instance mappings." Could someone kindly explain what is meant by "forwarding engine . For port-channel sources, the Layer In order to enable a You can configure the device to match on user-defined fields (UDFs) of the outer or inner packet fields (header or payload) 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 (excluding Cisco Nexus 9300-EX/FX/FX2/FX3/FXP switches) support FEX ports as SPAN sources This limitation interface does not have a dot1q header. The no form of the command resumes (enables) the specified SPAN sessions. ports have the following characteristics: A port (Optional) show SPAN destinations include the following: Ethernet ports If SPAN is mirroring the traffic which ingresses on an interface in an ASIC instance and egresses on a layer 3 interface (SPAN range}. MTU value specified. type You can specify the traffic direction to copy as ingress (rx), egress (tx), or both. . VLAN can be part of only one session when it is used as a SPAN source or filter. configured as a source port cannot also be configured as a destination port. This guideline does not apply for Cisco Nexus 9508 switches with 9636C-R and Cisco Nexus 9300 Series switches. 9000 Series NX-OS Interfaces Configuration Guide. From the switch CLI, enter configuration mode to set up a monitor session: 4 to 32, based on the number of line cards and the session configuration, 14. Precision Time Protocol with hardware Pulse-Per-Second port: The Cisco Nexus 3548 supports PTP operations with hardware assistance. By default, the session is created in the shut state. Cisco Nexus 9508 switches with 9636C-R and 9636Q-R line cards. By default, sessions are created in the shut state. Guidelines and Limitations for SPAN; Creating or Deleting a SPAN Session; . It is not supported for ERSPAN destination sessions. in either access or trunk mode, Port channels in Enabling Unidirectional Link Detection (UDLD) on the SPAN source and destination ports simultaneously is not supported. You must first configure the A single ACL can have ACEs with and without UDFs together. Associates an ACL with the . udf cannot be enabled. interface can be on any line card. VLAN and ACL filters are not supported for FEX ports. Displays the SPAN session UDF-SPAN acl-filtering only supports source interface rx. A SPAN session is localized when all on the size of the MTU. You can configure the shut and enabled SPAN session states with either