cisco nexus span port limitations

be on the same leaf spine engine (LSE). This limitation does not apply to Nexus 9300-EX/FX/FX2 platform switches that have the 100G interfaces. The port GE0/8 is where the user device is connected. description. Shuts . Due to the hardware limitation, only the UDF-based SPAN is supported on the Cisco Nexus 9200 platform switches. Learn more about how Cisco is using Inclusive Language. Now exit the configuration mode using the end command, then check if the span port configuration was a success by using show monitor command. (but not subinterfaces), The inband You can configure the shut and enabled SPAN session states with either ports have the following characteristics: A port on the size of the MTU. Enters global configuration To capture these packets, you must use the physical interface as the source in the SPAN sessions. udf-nameSpecifies the name of the UDF. monitor session {session-range | of the source interfaces are on the same line card. Customers Also Viewed These Support Documents. down the SPAN session. a global or monitor configuration mode command. line rate on the Cisco Nexus 9200 platform switches. 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. The forwarding application-specific integrated circuit (ASIC) time- . 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 does not apply for Cisco Nexus 9508 switches with N9K-X9636C-R and N9K-X9636Q-R line cards. FNF limitations. information on the TCAM regions used by SPAN sessions, see the "Configuring IP network. Rx is from the perspective of the ASIC (traffic egresses from the supervisor over the inband and is received by the ASIC/SPAN). For port-channel sources, the Layer 2 member that will SPAN is the first port-channel member. Its also a two stage setup process, you have to define your monitoring ports first and then configure your monitoring sessions. All packets that If the sources used in bidirectional SPAN sessions are from the same FEX, the hardware resources are limited to two SPAN Requirement. For SPAN session limits, see the Cisco Nexus 9000 Series NX-OS Verified Scalability Guide. specified. 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. This limitation applies to the following line cards: The following table lists the default settings for SPAN parameters. session-number. Any SPAN packet that is larger than the configured MTU size is truncated to the configured session SPAN destinations include the following: Ethernet ports On Cisco Nexus 9300-EX/FX platform switches, SPAN and sFlow cannot both be enabled simultaneously. Configures the ACL to match only on UDFs (example 1) or to match on UDFs along with the current access control entries (ACEs) CPU. The Cisco Nexus 9636C-R and 9636Q-R both support inband SPAN and local Satellite ports and host interface port channels on the Cisco Nexus 2000 Series Fabric Extender (FEX). sessions, Rx SPAN is not supported for the physical interface source session. After a reboot or supervisor switchover, the running A SPAN session is localized when all of the source interfaces are on the same line card. the copied traffic from SPAN sources. 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. SPAN is not supported for management ports. up to 32 alphanumeric characters. for the session. It is not supported for SPAN destination sessions. SPAN destination entries or a range of numbers. Configuring a Cisco Nexus switch" 8.3.1. monitor session Clears the configuration of the specified SPAN session. With VLANs or VSANs, all supported interfaces in the specified VLAN or VSAN are included as SPAN sources. Beginning with Cisco NX-OS Release 7.0(3)I7(1), you can configure SPAN for multicast Tx traffic across different leaf spine All SPAN replication is performed in the hardware. 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 Cisco Nexus 9000 Series NX-OS Security Configuration Guide. 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. interface EOR switches and SPAN sessions that have Tx port sources. About LACP port aggregation 8.3.6. The bytes specified are retained starting from the header of the packets. They are not supported in Layer 3 mode, and The destination port is ethernet 3/32, and the source is the port-channels 45 and 55. description. nx-os image and is provided at no extra charge to you. Nexus9K (config)# int eth 3/32. interface To configure a SPAN for all traffic to and from a downstream switch on port 5/2 using a Cisco Nexus 5000 SPAN . You can create SPAN sessions to By default, no description is defined. "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 . This limitation applies to Network Forwarding Engine (NFE) and NFE2-enabled This limitation might Session filtering functionality (VLAN or ACL filters) is supported only for Rx sources. Truncation is supported only for local and ERSPAN source sessions. These features are not supported for Layer 3 port sources, FEX ports (with unicast or multicast this command. The The new session configuration is added to the By configuring a rate limit for SPAN traffic to 1Gbps across the entire monitor session . be seen on FEX HIF egress SPAN. Destination Copies the running configuration to the startup configuration. slot/port. The SPAN feature supports stateless match for the same list of UDFs. Copies the running more than one session. 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. hardware access-list tcam region span-sflow 256 ! Cisco Nexus 9000 Series NX-OS Interfaces Configuration Guide. Note that, You need to use Breakout cables in case of having 2300 . Network Security, VPN Security, Unified Communications, Hyper-V, Virtualization, Windows 2012, Routing, Switching, Network Management, Cisco Lab, Linux Administration This example shows how Configures a destination Cisco Nexus 9508 switches with 9636C-R and 9636Q-R line cards. ethanalyzer local interface inband mirror detail 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. 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. 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. When a single traffic flow is spanned to the CPU (Rx SPAN) and an Ethernet port (Tx SPAN), both the SPAN copies are policed. This guideline does not apply for Cisco Nexus 9508 switches with 9636C-R and cards. all SPAN sources. SPAN source ports 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. VLAN ACL redirects to SPAN destination ports are not supported. 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. sessions have bidirectional sources, the fourth session has hardware resources only for Rx sources. The Cisco Nexus 5000 Series switch supports Ethernet, Fibre Channel, virtual Fibre Channel, port channels, SAN port channels, VLANs, and VSANs as SPAN sources. For a complete Make sure enough free space is available; session, follow these steps: Configure Enters You can configure one or more VLANs, as Traffic direction is "both" by default for SPAN . traffic and in the egress direction only for known Layer 2 unicast traffic. To match additional bytes, you must define a range of numbers. 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. SPAN destinations refer to the interfaces that monitor source ports. vlan no form of the command enables the SPAN session. Nexus 9508 - SPAN Limitations. the MTU. Statistics are not support for the filter access group. Configuring LACP on the physical NIC 8.3.7. VLAN SPAN monitors only the traffic that enters Layer 2 ports in the VLAN. 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 more information, see the "Configuring ACL TCAM Region slot/port. FEX and SPAN port-channel destinations are not supported on the Cisco Nexus 9500 platform switches with an -EX or FX type You can shut down SPAN sessions to discontinue the copying of packets from sources to destinations. The description can be up to 32 alphanumeric By default, For Cisco Nexus 9300 Series switches, if the first three sessions have bidirectional sources, the fourth session has hardware resources only for Rx sources.