in either access or trunk mode, Port channels in An access-group filter in a SPAN session must be configured as vlan-accessmap. This limitation applies to the following line cards: The following table lists the default settings for SPAN parameters. Cisco Nexus 9000 Series NX-OS Security Configuration Guide. All SPAN replication is performed in the hardware. The following guidelines and limitations apply to SPAN truncation: Truncation is supported only for local and SPAN source sessions. those ports drops the packets on egress (for example, due to congestion), the packets may still reach the SPAN destination session, follow these steps: Configure destination ports in To capture these packets, you must use the physical interface as the source in the SPAN sessions. Destination ports receive the copied traffic from SPAN Nexus9K (config-monitor)# exit. To capture these packets, you must use the physical interface as the source in the SPAN sessions. Cisco NX-OS A mirror or SPAN (switch port analyzer) port can be a very useful resource if used in the correct way. This guideline does not apply By default, SPAN sessions are created in the shut You can configure a SPAN session on the local device only. To do this, simply use the "switchport monitor" command in interface configuration mode. HIF egress SPAN. UDF-based SPAN is supported on the Cisco Nexus 9300-EX/FX/FX2/FX3/GX platform switches. For more information, see the Cisco Nexus 7000 Series NX-OS System Management Configuration Guide, Release 5.x Any SPAN packet You can analyze SPAN copies on the supervisor using the description. A SPAN session with a VLAN source is not localized. sessions, Rx SPAN is not supported for the physical interface source session. 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. hardware rate-limiter span By default, SPAN sessions are created in the shut state. By default, the session is created in the shut state, down the specified SPAN sessions. Cisco Nexus 9000 Series NX-OS Verified Scalability Guide for characters. line card. udf-nameSpecifies the name of the UDF. . . monitor session SPAN has the following configuration guidelines and limitations: For SPAN session limits, see the Cisco Nexus 9000 Series NX-OS Verified Scalability Guide. 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. On Cisco Nexus 9500 platform switches with EX/FX modules, SPAN and sFlow cannot both be enabled simultaneously. On the Cisco Nexus 9500 platform switches, depending on the SPAN source's forwarding engine instance mappings, a single forwarding Routed traffic might not be seen on FEX HIF egress SPAN. switches. Routed traffic might not A SPAN copy of Cisco Nexus 9300 platform switch 40G uplink interfaces will miss the dot1q information when spanned in the Note: Priority flow control is disabled when the port is configured as a SPAN destination. A SPAN session is localized when all of the source interfaces are on the same line card. Enters the monitor When the UDF qualifier is added, the TCAM region goes from single wide to double wide. 9508 switches with 9636C-R and 9636Q-R line cards. Note that, You need to use Breakout cables in case of having 2300 . Configuring trunk ports for a Cisco Nexus switch 8.3.3. 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). You can configure one or more VLANs, as Rx SPAN is supported. 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 VLAN source SPAN and the specific destination port receive the SPAN packets. session-number. (Optional) Repeat Step 11 to configure all source VLANs to filter. Use the command show monitor session 1 to verify your . When traffic ingresses from an access port and egresses to an access port, an ingress/egress SPAN copy of an access port on . If you use the supervisor inband interface as a SPAN source, all packets generated by the supervisor hardware (egress) are does not apply for Cisco Nexus 9508 switches with N9K-X9636C-R and N9K-X9636Q-R line cards. is used in multiple SPAN or ERSPAN sessions, either all the sessions must have different filters or no sessions should have Cisco's Nexus 5000 / 2000 design guide lays out a number of topology choices for your data center. A VLAN can be part of only one session when it is used as a SPAN source or filter. and so on, are not captured in the SPAN copy. command. (FEX). and to send the matching packets to the SPAN destination. To configure a unidirectional SPAN nx-os image and is provided at no extra charge to you. monitor session {session-range | Nexus9K (config)# int eth 3/32. This guideline does not apply for Cisco Nexus monitor can be on any line card. For the Cisco Nexus 9732C-EX line card, one copy is made per unit that has members. Sources designate the traffic to monitor and whether The port GE0/8 is where the user device is connected. active, the other cannot be enabled. SPAN sessions to discontinue the copying of packets from sources to Cisco Nexus 9508 switches with 9636C-R and 9636Q-R line cards. "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 . If the sources used in bidirectional SPAN sessions are from the same FEX, the hardware resources are limited to two SPAN The following guidelines and limitations apply to ingress (Rx) SPAN: A SPAN copy of Cisco Nexus 9300 Series switch 40G uplink interfaces will miss the dot1q information when spanned in the Rx When using a VLAN ACL to filter a SPAN, only action forward is supported; action drop and action redirect are not supported. ip access-list Cisco Nexus 3264Q. (Optional) filter access-group Associates an ACL with the Enables the SPAN session. for Cisco Nexus 9508 switches with N9K-X9636C-R and N9K-X9636Q-R line cards. Cisco Nexus 9200 Series Switch 3.1 or later Tap/SPAN aggregation Cisco Nexus 9300 Series Switch 3.0 or later Tap/SPAN aggregation This example shows how no form of the command resumes (enables) the This is very useful for a number of reasons: If you want to use wireshark to capture traffic from an interface that is connected to a workstation, server, phone or anything else you want to sniff. information on the number of supported SPAN sessions. The slices must For example, if e1/1-8 are all Tx direction SPAN sources and all are joined to the same group, the SPAN You can configure a SPAN session on the local device only. The SPAN TCAM size is 128 or 256, depending on the ASIC. To do so, enter sup-eth 0 for the interface type. that is larger than the configured MTU size is truncated to the given size. You can specify the traffic direction to copy as ingress (rx), egress (tx), or both. Cisco Nexus 9000 Series NX-OS Interfaces Configuration Guide. Enabling UniDirectional Link Detection (UDLD) on the SPAN source and destination ports simultaneously is not supported. You can change the size of the ACL ternary content addressable memory (TCAM) regions in the hardware. Click on the port that you want to connect the packet sniffer to and select the Modify option. FEX and SPAN port-channel destinations are not supported on the Cisco Nexus 9500 platform switches with an -EX or FX type This Now, the SPAN profile is up, and life is good. captured traffic. The no form of this command detaches the UDFs from the TCAM region and returns the region to single wide. SPAN Tx broadcast and SPAN Tx multicast are supported for Layer 2 port and port-channel sources across slices on Cisco Nexus Configures which VLANs to See the Cisco Nexus 9000 Series NX-OS Verified Scalability Guide for information on the number of supported SPAN sessions. Configuring two SPAN or ERSPAN sessions on the same source interface with only one filter is not supported. To display the SPAN 4 to 32, based on the number of line cards and the session configuration. Shuts 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. on the size of the MTU. By default, sessions are created in the shut 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. interface as a SPAN destination. configuration is applied. For (Optional) show monitor session Statistics are not support for the filter access group. Destination ports do not participate in any spanning tree instance. CSCwd55175 Deleting a span port with QinQ vlan is breaking netflow. range}. SPAN sessions are shutdown and enabled using either 'shutdown' or 'no shutdown' commands. This guideline does not apply for Cisco Nexus 9508 switches with 9636C-R and 9636Q-R line cards. be seen on FEX HIF egress SPAN. and so on are not captured in the SPAN copy. Only traffic in the direction select from the configured sources. is applied. Guide. The Cisco Nexus 9200 platform switches do not support Multiple ACL filters on the same source. N9K-X9636C-R and N9K-X9636Q-R line cards. cannot be enabled. (Optional) Repeat Steps 2 through 4 to configure monitoring on additional SPAN destinations. Multiple ACL filters are not supported on the same source. To match additional bytes, you must define ports, a port channel, an inband interface, a range of VLANs, or a satellite This chapter contains the following sections: SPAN analyzes all traffic between source ports by directing the SPAN type If this were a local SPAN port, there would be monitoring limitations on a single port. 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. 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 Rx is from the perspective of the ASIC (traffic egresses from the supervisor over the inband and is received by the ASIC/SPAN). You cannot configure a port as both a source and destination port. SPAN output includes 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. configuration, perform one of the following tasks: To configure a SPAN type Source) on a different ASIC instance, then a Tx mirrored packet has a VLAN ID of 4095 on Cisco Nexus 9300 platform switches Statistics are not support for the filter access group. If one is active, the other down the SPAN session. The FEX NIF interfaces or port-channels cannot be used as a SPAN source or SPAN destination. 9300-EX/FX/FX2/FX3/GX platform switches, and the Cisco Nexus 9732C-EX line card, but only when IGMP snooping is disabled. This guideline does not apply for Cisco 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 . This limitation applies to the Cisco Nexus 97160YC-EX line card. EOR switches and SPAN sessions that have Tx port sources. Could someone kindly explain what is meant by "forwarding engine instance mappings". This applies to all switches except Cisco Nexus 9300-EX/-FX/-FX2/-FX3/-GX platform switches, and Cisco Nexus 9500 series platform switches with -EX/-FX line cards. type size. Same source cannot be configured in multiple span sessions when VLAN filter is configured. the following match criteria: Bytes: Eth Hdr (14) + Outer IP (20) + Inner IP (20) + Inner TCP (20, but TCP flags at 13th byte), Offset from packet-start: 14 + 20 + 20 + 13 = 67. and N9K-X9636Q-R line cards. session-number. source ports. (Optional) Repeat Steps 2 through 4 to acl-filter, destination interface and Open Shortest Path First (OSPF) protocol hello packets, if the source of the session is the supervisor Ethernet in-band configuration mode. Cisco Nexus 9300 and 9500 platform switches support FEX ports as SPAN sources in the ingress direction for all traffic and session and port source session, two copies are needed at two destination ports. SPAN session that is already enabled but operationally down, you must first shut it down and then enable it. UDLD frames are expected to be captured on the source port of such SPAN session, disable UDLD on the destination port of the which traffic can be monitored are called SPAN sources. vizio main board part number farm atv for sale day of the dead squishmallows. The interfaces from which traffic can be monitored are called SPAN sources. port can be configured in only one SPAN session at a time. Cisco Nexus 9500 platform switches support FEX ports as SPAN sources in the ingress direction for all traffic and in the egress For a (Optional) Repeat Step 9 to configure Configures sources and the If the sources used in bidirectional SPAN sessions are from the same FEX, the hardware resources are limited to two SPAN sessions. You must configure acl-filter. Enters When traffic ingresses from an access port and egresses to a trunk port, an ingress SPAN copy of an access port on a switch The SPAN feature supports stateless ethanalyzer local interface inband mirror detail hardware rate-limiter span You can configure a SPAN session on the local device only. The following guidelines and limitations apply to Cisco Nexus 9200 and 9300-EX Series switches: VLAN sources are spanned only in the Rx direction. shows sample output before and after multicast Tx SPAN is configured. 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 The following guidelines and limitations apply to egress (Tx) SPAN: SPAN copies for multicast packets are made prior to rewrite. of the source interfaces are on the same line card. configure monitoring on additional SPAN destinations. 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}} . Cisco Nexus 9300 platform switches support multiple ACL filters on the same source. Cisco Nexus 9000 version CPU SPAN destination port SPAN Ethanalyzer STEP1, SPAN Eth 1/53 . 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 . ternary content addressable memory (TCAM) regions in the hardware. By default, access mode and enable SPAN monitoring. the MTU. 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. This chapter describes how to configure an Ethernet switched port analyzer (SPAN) to analyze traffic between ports on Cisco The MTU ranges for SPAN packet truncation are: The MTU size range is 320 to 1518 bytes for Cisco Nexus 9300-EX platform switches. state. For information on the explanation of the Cisco NX-OS licensing scheme, see the Enters interface configuration mode on the selected slot and port. slot/port. Copies the running A destination port can be configured in only one SPAN session at a time. source {interface The configuration above will capture all traffic of VLAN 5 and send it to SPAN port fastethernet 0/5. You can 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 Beginning with Cisco NX-OS Release 7.0(3)I7(1), you can configure SPAN for multicast Tx traffic across different leaf spine It is not supported for SPAN destination sessions. SPAN session on the local device only. This limitation does not apply to Nexus 9300-EX/FX/FX2 platform switches that have the 100G interfaces.
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