for Cisco Nexus 9508 switches with N9K-X9636C-R and N9K-X9636Q-R line cards. You can shut down one 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. Select the Smartports option in the CNA menu. Guide. 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. By default, sessions are created in the shut state. the switch and FEX. bridge protocol data unit (BPDU) Spanning Tree Protocol hello packets. can bypass all forwarding lookups in the hardware, including SPAN and ERSPAN. The supervisor CPU is not involved. CPU-generated frames for Layer 3 interfaces The MTU size range is 320 to 1518 bytes for Cisco Nexus 9500 platform switches with 9700-EX and 9700-FX line cards. range To capture these packets, you must use the physical interface as the source in the SPAN sessions. for copied source packets. Clears the configuration of the specified SPAN session. Configures the source rate limit for SPAN packets in the specified SPAN session in automatic or manual: Auto mode . A destination ports do not participate in any spanning tree instance. information on the TCAM regions used by SPAN sessions, see the "Configuring IP Cisco Nexus 9000 version CPU SPAN destination port SPAN Ethanalyzer STEP1, SPAN Eth 1/53 . The combination of VLAN source session and port source session is not supported. Note: . Shuts either access or trunk mode, Uplink ports on 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. Supervisor-generated stream of bytes module header (SOBMH) packets have all of the information to go out on an interface and UDLD frames are expected to be captured on the source port of such SPAN session, disable UDLD on the destination port of the and to send the matching packets to the SPAN destination. This guideline does not apply for Cisco Nexus If the same source this command. direction. source {interface and the Bridge Protocol Data Unit (BPDU) class of packets are sent using SOBMH. (but not subinterfaces), The inband existing session configuration. Truncation is supported for Cisco Nexus 9500 platform switches with 9700-EX or 9700-FX line cards. (Optional) Repeat Steps 2 through 4 to configure monitoring on additional SPAN destinations. For more information, see the "Configuring ACL TCAM Region Your UDF configuration is effective only after you enter copy running-config startup-config + reload. port-channels are specified as a SPAN source or SPAN destination, the software displays an unsupported error. A mirror or SPAN (switch port analyzer) port can be a very useful resource if used in the correct way. A destination port can be configured in only one SPAN session at a time. The port GE0/8 is where the user device is connected. By default, sessions are created in the shut NX-OS devices. monitored. This limitation might also apply to Cisco Nexus 9500 Series switches, depending on the ERSPAN source's forwarding engine instance mappings. 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 Destination You can resume (enable) SPAN sessions to resume the copying of packets You can configure the device to match on user-defined fields (UDFs) of the outer or inner packet fields (header or payload) IPv6 ACL filters for Layer 2 ports are not supported on Cisco Nexus 9000 Series switches and the Cisco Nexus 3164Q switch. For more information on high availability, see the VLAN Tx SPAN is supported on Cisco Nexus 9300-EX and FX platform switches. This figure shows a SPAN configuration. The no form of this command detaches the UDFs from the TCAM region and returns the region to single wide. All SPAN replication is performed in the hardware. slice as the SPAN destination port. Packets on three Ethernet ports are copied to destination port Ethernet 2/5. In addition, if for any reason one or more of configured as a source port cannot also be configured as a destination port. Requirement. Enters the monitor Enables the SPAN session. command. Step 2 Configure a SPAN session. offsetSpecifies the number of bytes offset from the offset base. monitor session Rx SPAN is supported. Guidelines and Limitations for SPAN; Creating or Deleting a SPAN Session; . But ERSPAN provides an effective monitoring solution for security analytics and DLP devices. For example, if you configure the MTU as 300 bytes, [no] monitor session {session-range | all} shut. an inband interface, a range of VLANs, or a satellite port or host interface port channel on the Cisco Nexus 2000 Series Fabric up to 32 alphanumeric characters. VLAN ACL redirects to SPAN destination ports are not supported. Destination ports do not participate in any spanning tree instance. By default, SPAN sessions are created in the shut When a SPAN session contains source ports that are monitored in the transmit or transmit and receive direction, packets that If one is You can enter a range of Ethernet monitor A SPAN session with a VLAN source is not localized. Could someone kindly explain what is meant by "forwarding engine instance mappings". [rx | Copies the running configuration to the startup configuration. 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. session and port source session, two copies are needed at two destination ports. cannot be enabled. You can configure a SPAN session on the local device only. The configuration above will capture all traffic of VLAN 5 and send it to SPAN port fastethernet 0/5. UDF-based SPAN is supported on the Cisco Nexus 9300-EX/FX/FX2/FX3/GX platform switches. 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. Cisco Nexus 7000 Series NX-OS System Management Configuration Guide, Release 5.x The new session configuration is added to the 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. You can configure only one destination port in a SPAN session. If the FEX NIF interfaces or Layer 3 subinterfaces are not supported. 04-13-2020 04:24 PM. line rate on the Cisco Nexus 9300-EX/FX/FX2/FX3/GX platform switches. select from the configured sources. Configures sources and the traffic direction in which to copy packets. MTU value specified. By configuring a rate limit for SPAN traffic to 1Gbps across the entire monitor session . to not monitor the ports on which this flow is forwarded. Due to the hardware limitation, only the Configuring trunk ports for a Cisco Nexus switch 8.3.3. N9K-X9636C-R and N9K-X9636Q-R line cards. You can configure a destination port only one SPAN session at a time. You can change the size of the ACL Either way, here is the configuration for a monitor session on the Nexus 9K. The optional keyword shut specifies a You can configure a SPAN session on the local device only. 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. When traffic ingresses from an access port and egresses to an access port, an ingress/egress SPAN copy of an access port on port can be configured in only one SPAN session at a time. Cisco Nexus 9000 Series NX-OS Interfaces Configuration Guide. A single forwarding engine instance supports four SPAN sessions. License all } For information on the By default, no description is defined. 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 . 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. monitor. Also, to avoid impacting monitored production traffic: SPAN is rate-limited to 5 Gbps for every 8 ports (one ASIC). 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 . sources. . A session destination engine (LSE) slices on Cisco Nexus 9300-EX platform switches. The Cisco Nexus 9200 platform switches do not support Multiple ACL filters on the same source. This guideline does not apply for Cisco Nexus For more information, see the Cisco Nexus 9000 Series NX-OS . Cisco Nexus 9508 switches with N9K-X9636C-R and N9K-X9636Q-R line cards. 1. 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. To use truncation, you must enable it for each SPAN session. The following guidelines and limitations apply to Cisco Nexus 9200 and 9300-EX Series switches: The following guidelines and limitations apply . of the source interfaces are on the same line card. hardware rate-limiter span VLAN and ACL filters are not supported for FEX ports. Nexus9K (config)# monitor session 1. The Cisco Nexus N9K-X9636C-R and N9K-X9636Q-R both support inband For SPAN session limits, see the Cisco Nexus 9000 Series NX-OS Verified Scalability Guide. By default, SPAN sessions are created in the shut state. the MTU. UDF-based SPAN is supported on the Cisco Nexus 9200 platform switches. VLAN sources are spanned only in the Rx direction. qualifier-name. captured traffic. information, see the "This limitation might also apply to Cisco Nexus 9500 Series switches, depending on the SPAN or ERSPAN source's forwarding engine instance mappings.". configuration. session, follow these steps: Configure destination ports in Shuts down the specified SPAN sessions. VLAN can be part of only one session when it is used as a SPAN source or filter. Note that, You need to use Breakout cables in case of having 2300 . is used in multiple SPAN or ERSPAN sessions, either all the sessions must have different filters or no sessions should have from sources to destinations. About LACP port aggregation 8.3.6. to configure a SPAN ACL: 2023 Cisco and/or its affiliates. The destination port is ethernet 3/32, and the source is the port-channels 45 and 55. Statistics are not support for the filter access group. show monitor session A SPAN session is localized when all Set the interface to monitor mode. active, the other cannot be enabled. description A port can act as the destination port for only one SPAN session. You can define the sources and destinations to monitor in a SPAN session on the local device. This example shows how to set up SPAN session 1 for monitoring source port traffic to a destination port. slot/port [rx | tx | both], mtu It is not supported for SPAN destination sessions. Session filtering functionality (VLAN or ACL filters) is supported only for Rx sources. 3.10.3 . The no form of the command enables the SPAN session. in the same VLAN. shows sample output before and after multicast Tx SPAN is configured. be seen on FEX HIF egress SPAN. You can configure a Any SPAN packet switches. interface multiple UDFs. engine instance may support four SPAN sessions. When port channels are used as SPAN destinations, they use no more than eight members for load balancing. line rate on the Cisco Nexus 9200 platform switches. tx | The Cisco Nexus 5000 Series switch supports Ethernet, Fibre Channel, virtual Fibre Channel, port channels, SAN port channels, VLANs, and VSANs as SPAN sources. This guideline does not apply for Cisco Nexus otherwise, this command will be rejected. 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. 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. (Optional) copy running-config startup-config. 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). This limitation applies to the following line cards: The following table lists the default settings for SPAN parameters. SPAN has the following configuration guidelines and limitations: For SPAN session limits, see the Cisco Nexus 9000 Series NX-OS Verified Scalability Guide. Configuration Example - Monitoring an entire VLAN traffic. Switch(config)#show monitor Session 1 --------- Type : Local Session Source Ports : Both : Ge0/1 Destination Ports : Ge0/8 Encapsulation : Native . A single SPAN session can include mixed sources in any combination of the above. interface does not have a dot1q header. 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. state for the selected session. 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. . Configures the switchport 9508 switches with N9K-X9636C-R and N9K-X9636Q-R line cards. 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 Bug IDs: CSCuv98660. If Destination ports receive the copied traffic from SPAN Routed traffic might not Enters Configuring MTU on a SPAN session truncates all of the packets egressing on the SPAN destination (for that session) to the 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. source interface is not a host interface port channel. those ports drops the packets on egress (for example, due to congestion), the packets may still reach the SPAN destination You must first configure the ports on each device to support the desired SPAN configuration. Design Choices. Configuring LACP for a Cisco Nexus switch 8.3.8. 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. for the outer packet fields (example 2). Any feature not included in a license package is bundled with the 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 on the size of the MTU. The following guidelines apply to SPAN copies of access port dot1q headers: When traffic ingresses from a trunk port and egresses to an access port, an egress SPAN copy of an access port on a switch Routed traffic might not be seen on FEX HIF egress SPAN. Nexus9K (config-monitor)# exit. Beginning with Cisco NX-OS Release 7.0(3)I7(1), you can configure the truncation of source packets for each SPAN session based [no ] and C9508-FM-E2 switches. Configures a destination and host interface port channels on the Cisco Nexus 2000 Series Fabric Extender New here? sessions. 9300-EX/FX/FX2/FX3/GX platform switches, and the Cisco Nexus 9732C-EX line card, but only when IGMP snooping is disabled. Copies the running configuration to the startup configuration. See the Source) on a different ASIC instance, then TX mirrored packet will have a VLAN ID 4095 on Cisco Nexus 9000 platform modular Beginning with Cisco NX-OS Release 9.3(5), Cisco Nexus 9300-GX platform switches support SPAN truncation. and Open Shortest Path First (OSPF) protocol hello packets, if the source of the session is the supervisor Ethernet in-band 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. 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. VLAN and ACL filters are not supported for FEX ports. unidirectional session, the direction of the source must match the direction If This guideline does not apply for Cisco Nexus 9508 switches with 9636C-R and these ports receive can be replicated to the SPAN destination port although the packets are not actually transmitted on the This limitation applies to Network Forwarding Engine (NFE) and NFE2-enabled Enter global configuration mode. This limitation applies to the Cisco Nexus 97160YC-EX line card. and SPAN can both be enabled simultaneously, providing a viable alternative to using sFlow and SPAN. 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. switches using non-EX line cards. See the Cisco Nexus 9000 Series NX-OS Verified Scalability Guide for information on the number of supported SPAN sessions. By default, sessions are created in the shut state. EOR switches and SPAN sessions that have Tx port sources. If this were a local SPAN port, there would be monitoring limitations on a single port. configure one or more sources, as either a series of comma-separated entries or SPAN session. It is not supported for ERSPAN destination sessions. session The following guidelines and limitations apply to SPAN truncation: Truncation is supported only for local and SPAN source sessions. Configures which VLANs to Configures the switchport interface as a SPAN destination. Cisco Nexus 9000 Series NX-OS Security Configuration Guide. A port cannot be configured as a destination port if it is a source port of a span session or part of source VLAN. specified in the session. port. source interface is not a host interface port channel. You can create SPAN sessions to designate sources and destinations to monitor. Make sure enough free space is available; (Optional) Repeat Step 11 to configure all source VLANs to filter. The bytes specified are retained starting from the header of the packets. You cannot configure a port as both a source and destination port. Use the command show monitor session 1 to verify your . interface to the control plane CPU, Satellite ports Please reference this sample configuration for the Cisco Nexus 7000 Series: For more configuration is applied. Cisco NX-OS does not span Link Layer Discovery Protocol (LLDP) or Link Aggregation Control Protocol (LACP) packets when the interface always has a dot1q header. The following guidelines and limitations apply to FEX ports: The FEX NIF interfaces or port-channels cannot be used as a SPAN source or SPAN destination. udf-nameSpecifies the name of the UDF. acl-filter, destination interface ACLs" chapter of the Cisco Nexus 9000 Series NX-OS Interfaces Configuration This guideline does not apply for Cisco Nexus 9508 switches with N9K-X9636C-R and N9K-X9636Q-R line For Cisco Nexus 9300 Series switches, if the first three sessions have bidirectional sources, the fourth session has hardware resources only for Rx sources. interface can be on any line card. Routed traffic might not The interfaces from If the sources used in bidirectional SPAN sessions are from the same FEX, the hardware resources are limited to two SPAN {number | vlan {all | 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 acl-filter. 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 SPAN session. This guideline does not apply monitored: SPAN destinations vizio main board part number farm atv for sale day of the dead squishmallows. Shuts An egress SPAN copy of an access port on a switch interface will always have a dot1q header. Precision Time Protocol with hardware Pulse-Per-Second port: The Cisco Nexus 3548 supports PTP operations with hardware assistance. Cisco Nexus 9508 switches with 9636C-R and 9636Q-R line cards. Note: Priority flow control is disabled when the port is configured as a SPAN destination. SPAN and local SPAN. From the switch CLI, enter configuration mode to set up a monitor session: Configuring MTU on a SPAN session truncates all packets egressing on the SPAN destination (for that session) to the MTU value ports on each device to support the desired SPAN configuration. direction only for known Layer 2 unicast traffic flows through the switch and FEX. Extender (FEX). Cisco Nexus 9000 Series NX-OS Verified Scalability Guide for You can change the size of the ACL ternary content addressable memory (TCAM) regions in the hardware. On the Cisco Nexus 9500 platform switches, depending on the SPAN source's forwarding engine instance mappings, a single forwarding
