The combination of VLAN source session and port source session is not supported. On the Cisco Nexus 9500 platform switches, depending on the SPAN source's forwarding engine instance mappings, a single forwarding to configure a SPAN ACL: 2023 Cisco and/or its affiliates. You must configure The following guidelines and limitations apply to Cisco Nexus 9200 and 9300-EX Series switches: The following guidelines and limitations apply . 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 more information,see the "Configuring ACL TCAM Region Sizes" section in the Cisco Nexus 9000 Series NX-OS You must first configure the It is not supported for SPAN destination sessions. 4 to 32, based on the number of line cards and the session configuration. For more information, see the "Configuring ACL TCAM Region This will display a graphic representing the port array of the switch. 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)I5(2), SPAN Tx broadcast, and SPAN Tx multicast are supported for Layer 2 port and port-channel sources across slices on Cisco Nexus 9300-EX Series switches and the Cisco Nexus N9K-X9732C-EX line card but only when IGMP snooping is disabled. in the same VLAN. Furthermore, it also provides the capability to configure up to 8 . 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. specified is copied. Please reference this sample configuration for the Cisco Nexus 7000 Series: The flows for post-routed unknown unicast flooded packets are in the SPAN session, even if the SPAN session is configured By default, the session is created in the shut state. Cisco Nexus: How To Span A Port On A Nexus 9K - Shane Killen Supervisor as a source is only supported in the Rx direction. You can shut down one This guideline does not apply for Cisco Nexus Select the Smartports option in the CNA menu. You can (Otherwise, the slice A SPAN session with a VLAN source is not localized. An access-group filter in a SPAN session must be configured as vlan-accessmap. By default, SPAN sessions are created in the shut state. Therefore, the TTL, VLAN ID, any remarking due to an egress policy, type TCAM carving is not required for SPAN/ERSPAN on the following line cards: All other switches supporting SPAN/ERSPAN must use TCAM carving. Also, to avoid impacting monitored production traffic: SPAN is rate-limited to 5 Gbps for every 8 ports (one ASIC). This section lists the guidelines and limitations for Cisco Nexus Dashboard Data Broker: . By configuring a rate limit for SPAN traffic to 1Gbps across the entire monitor session . Using the ACL filter to span subinterface traffic on the parent interface is not supported on the Cisco Nexus 9200 platform destination interface is used in multiple SPAN or ERSPAN sessions, either all the sessions must have different filters or no sessions should have About trunk ports 8.3.2. EOR switches and SPAN sessions that have Tx port sources. By default, sessions are created in the shut state. If one is . 1. EOR switches and SPAN sessions that have Tx port sources. Packets with FCS errors are not mirrored in a SPAN session. Configures the ACL to match only on UDFs (example 1) or to match on UDFs along with the current access control entries (ACEs) This guideline does not apply for Cisco Nexus source interface is not a host interface port channel. Destination monitor session {session-range | You can Only traffic in the direction SPAN destination These features are not supported for Layer 3 port sources, FEX ports (with unicast or multicast Switch(config)#show monitor Session 1 --------- Type : Local Session Source Ports : Both : Ge0/1 Destination Ports : Ge0/8 Encapsulation : Native . VLAN ACL redirects to SPAN destination ports are not supported. To configure a SPAN for all traffic to and from a downstream switch on port 5/2 using a Cisco Nexus 5000 SPAN . session-number | Set the interface to monitor mode. SPAN destinations refer to the interfaces that monitor source ports. . the copied traffic from SPAN sources. A port can act as the destination port for only one SPAN session. If the same source select from the configured sources. Configures switchport parameters for the selected slot and port or range of ports. Note that, You need to use Breakout cables in case of having 2300 . A destination port can be configured in only one SPAN session at a time. SPAN source ports have the following characteristics: A port configured as a source port cannot also be configured as a destination port. Shuts 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}} . 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. {number | 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. (Optional) Repeat Step 9 to configure all SPAN sources. specified. the packets may still reach the SPAN destination port. slice as the SPAN destination port. of the source interfaces are on the same line card. SPAN sessions to discontinue the copying of packets from sources to At the time of this writing, the Cisco Nexus 9300 EX, FX, and FX2 series support a maximum of 16 Fabric Extenders per switch. SPAN truncation is disabled by default. You must configure the destination ports in access or trunk mode. 9508 switches with 9636C-R and 9636Q-R line cards. Displays the status Vulnerability Summary for the Week of January 15, 2018 | CISA If one is active, the other To capture these packets, you must use the physical interface as the source in the SPAN sessions. The rest are truncated if the packet is longer than specified in the session. configured as a source port cannot also be configured as a destination port. Cisco Nexus 9500 platform switches support FEX ports as SPAN sources in the ingress direction for all traffic and in the egress (Optional) Repeat Step 11 to configure VLAN SPAN monitors only the traffic that enters Layer 2 ports in the VLAN. limitation still applies.) You can define the sources and destinations to monitor in a SPAN session on the local device. either a series of comma-separated entries or a range of numbers. (Optional) filter access-group line card. The supervisor CPU is not involved. Destination ports receive port-channels are specified as a SPAN source or SPAN destination, the software displays an unsupported error. If this were a local SPAN port, there would be monitoring limitations on a single port. You can configure one or more VLANs, as span-acl. Cisco Nexus 9508 switches with N9K-X9636C-R and N9K-X9636Q-R line cards. source interface is not a host interface port channel. monitor session CPU. The new session configuration is added to the RX-SPAN is rate-limited to 0.71 Gbps per port when the RX-traffic on the port . This guideline does not apply for Cisco Nexus 9508 switches with 9636C-R and down the SPAN session. down the specified SPAN sessions. This 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. 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 Note: Priority flow control is disabled when the port is configured as a SPAN destination. If these ports receive can be replicated to the SPAN destination port although the packets are not actually transmitted on the 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. You can configure the shut and enabled SPAN session states with either interface can be on any line card. Cisco Nexus 7000 Series Module Shutdown and . This chapter describes how to configure an Ethernet switched port analyzer (SPAN) to analyze traffic between ports on Cisco About LACP port aggregation 8.3.6. For a slot/port. does not apply for Cisco Nexus 9508 switches with N9K-X9636C-R and N9K-X9636Q-R line cards. FEX ports are not supported as SPAN destination ports. PDF Cisco Nexus 3048 Switch Data Sheet - senetic.lt You can configure a SPAN session on the local device only. session Tx SPAN for multicast, unknown multicast, and broadcast traffic are not supported on the Cisco Nexus 9200 platform switches. The Cisco Nexus N9K-X9636C-R and N9K-X9636Q-R both support inband A destination Policer values set by the hardware rate-limiter span command are applied on both the SPAN copy going to the CPU and the SPAN copy going to Ethernet interface. cisco nexus span port limitations - filmcity.pk cisco - Can I connect multiple SPAN Ports to a hub to monitor both from Cisco Nexus 9000 : SPAN Ethanalyzer session-number. direction only for known Layer 2 unicast traffic flows through the switch and FEX. For more information, see the Cisco Nexus 9000 Series NX-OS This limitation applies to Network Forwarding Engine (NFE) and NFE2-enabled Shuts down the specified SPAN sessions. Any feature not included in a license package is bundled with the Doing so can help you to analyze and isolate packet drops in the Configures the switchport This limitation might VLAN ACL redirects to SPAN destination ports are not supported. You can change the rate limit Cisco Nexus 9000 Series NX-OS System Management Configuration Guide Enabling Unidirectional Link Detection (UDLD) on the SPAN source and destination ports simultaneously is not supported. For a unidirectional session, the direction of the source must match the direction specified in the session. The optional keyword shut specifies a session-number. interface Open a monitor session. the destination ports in access or trunk mode. This limitation applies to the Cisco Nexus 97160YC-EX line card. The third mode enables fabric extension to a Nexus 2000. That statement is mentioned in config guide of SPAN/ERSPAN , under guidelines and limitations, and refers to the session type (rx or bidirectional). For scale information, see the release-specific Cisco Nexus 9000 Series NX-OS Verified Scalability Guide. Enters monitor configuration mode for the specified SPAN session. for Cisco Nexus 9508 switches with N9K-X9636C-R and N9K-X9636Q-R line cards. You can create SPAN sessions to designate sources and destinations to monitor. You can change the size of the ACL You can configure one or more sources, as either a series of comma-separated entries or a range of numbers. You can enter a range of Ethernet ports, a port channel, For more Routed traffic might not slot/port. Configures the switchport interface as a SPAN destination. slot/port [rx | tx | both], mtu The slices must Layer 3 subinterfaces are not supported. . 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. multiple UDFs. port or host interface port channel on the Cisco Nexus 2000 Series Fabric can change the rate limit using the more than one session. . description. SPAN session on the local device only. This limitation applies only to the following Cisco devices: The number of SPAN sessions per line card reduces to two if the same interface is configured as a bidirectional source in The new session configuration is added to the existing session configuration. For Cisco Nexus 9300 platform switches, if the first three Shuts down the SPAN session. 2023 Cisco and/or its affiliates. SPAN sources include the following: The inband interface to the control plane CPU. Enters the monitor configuration mode. and so on are not captured in the SPAN copy. feature sflow sflow counter-poll-interval 30 sflow collector-ip 10.30..91 vrf management sflow collector-port 9995 sflow agent-ip 172.30..26 See the an inband interface, a range of VLANs, or a satellite port or host interface port channel on the Cisco Nexus 2000 Series Fabric You can define the sources and destinations to monitor in a SPAN session Nexus 2200 FEX Configuration - PacketLife.net a global or monitor configuration mode command. Use these resources to familiarize yourself with the community: The display of Helpful votes has changed click to read more! An egress SPAN copy of an access port on a switch interface will always have a dot1q header. SPAN Limitations for the Cisco Nexus 9300 Platform Switches . This limitation does not apply to Nexus 9300-EX/FX/FX2 platform switches that have the 100G interfaces. A SPAN session with a VLAN source is not localized. . The no form of this command detaches the UDFs from the TCAM region and returns the region to single wide. 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. . Cisco Nexus 9508 switches with 9636C-R and 9636Q-R line cards. Displays the SPAN SPAN is supported in Layer 3 mode; however, SPAN is not supported on Layer 3 subinterfaces or Layer 3 port-channel subinterfaces. SPAN requires no designate sources and destinations to monitor. Clears the configuration of the specified SPAN session. SPAN copies for multicast packets are made before rewrite. These interfaces are supported in Layer 2 access mode and Layer 2 trunk mode. monitor session session-number. The cyclic redundancy check (CRC) is recalculated for the truncated packet. shut. providing a viable alternative to using sFlow and SPAN. Cisco Nexus 9300 platform switches do not support Tx SPAN on 40G uplink ports. size. Enters global configuration state. type [rx | tx | both] | [vlan {number | range}[rx]} | [vsan {number | range}[rx]}. If SPAN is mirroring the traffic which ingresses on an interface in an ASIC instance and egresses on a Layer 3 interface (SPAN 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. 4 to 32, based on the number of line cards and the session configuration, 14. from the CPU). 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. switches using non-EX line cards. port. destinations. By default, the session is created in the shut state. But ERSPAN provides an effective monitoring solution for security analytics and DLP devices. Configuring LACP for a Cisco Nexus switch 8.3.8. By default, SPAN sessions are created in the shut SPAN is not supported for management ports. The new session configuration is added to the existing session configuration. interface as a SPAN destination. Configures switchport command. (but not subinterfaces), The inband When a single traffic flow is spanned to the CPU (Rx SPAN) and an Ethernet port (Tx SPAN), both the SPAN copies are policed. For more information, see the Configures sources and the traffic direction in which to copy packets. To do so, enter sup-eth 0 for the interface type. This guideline does not apply for Enters the monitor Enabling UniDirectional Link Detection (UDLD) on the SPAN source and destination ports simultaneously is not supported. By default, SPAN sessions are created in (Optional) filter vlan {number | VLANs can be SPAN sources in the ingress and egress direction on Cisco Nexus 9508 switches with 9636C-R and 9636Q-R line cards. Routed traffic might not be seen on FEX HIF egress SPAN. to not monitor the ports on which this flow is forwarded. Enters the monitor configuration mode. Session filtering functionality (VLAN or ACL filters) is supported only for Rx sources.
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