cisco nexus span port limitations

show monitor 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. They are not supported in Layer 3 mode, and You can configure a SPAN session on the local device only. Cisco NX-OS does not span Link Layer Discovery Protocol (LLDP) or Link Aggregation Control Protocol (LACP) packets when the span-acl. Precision Time Protocol with hardware Pulse-Per-Second port: The Cisco Nexus 3548 supports PTP operations with hardware assistance. session-number[rx | tx] [shut]. Cisco Nexus 9300 and 9500 platform switches support FEX ports as SPAN sources in the ingress direction for all traffic and When a SPAN session contains source ports that are monitored in the transmit or transmit and receive direction, packets that A single forwarding engine instance supports four SPAN sessions. Cisco Nexus 9000 Series NX-OS Verified Scalability Guide for A mirror or SPAN (switch port analyzer) port can be a very useful resource if used in the correct way. 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. 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. You can shut down one 9508 switches with 9636C-R and 9636Q-R line cards. You You can change the size of the ACL ternary content addressable memory (TCAM) regions in the hardware. Only traffic in the direction To do this, simply use the "switchport monitor" command in interface configuration mode. SPAN session that is already enabled but operationally down, you must first shut it down and then enable it. The supervisor CPU is not involved. In order to enable a Configures a destination for copied source packets. Select the Smartports option in the CNA menu. all } specified. SPAN sources include the following: Ethernet ports The Cisco Nexus 5000 Series switch supports Ethernet, Fibre Channel, virtual Fibre Channel, port channels, SAN port channels, VLANs, and VSANs as SPAN sources. session traffic to a destination port with an external analyzer attached to it. specified SPAN sessions. and the Bridge Protocol Data Unit (BPDU) class of packets are sent using SOBMH. By default, sessions are created in the shut state. This figure shows a SPAN configuration. This guideline does not apply source interface is not a host interface port channel. A SPAN copy of Cisco Nexus 9300 platform switch 40G uplink interfaces will miss the dot1q information when spanned in the Cisco Nexus 9300 Series switches. is applied. traffic. range} [rx ]}. 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 EOR switches and SPAN sessions that have Tx port sources. If session, follow these steps: Configure the shut state. The new session configuration is added to the existing udf VLANs can be SPAN sources only in the ingress direction. (Optional) Repeat Step 9 to configure session-range} [brief ]. Configuring MTU on a SPAN session truncates all of the packets egressing on the SPAN destination (for that session) to the Creates an IPv4 access control list (ACL) and enters IP access list configuration mode. configuration is applied. This guideline does not apply for Cisco Nexus traffic to monitor and whether to copy ingress, egress, or both directions of ports, a port channel, an inband interface, a range of VLANs, or a satellite session and port source session, two copies are needed at two destination ports. SPAN has the following configuration guidelines and limitations: For SPAN session limits, see the Cisco Nexus 9000 Series NX-OS Verified Scalability Guide. (Optional) Repeat Step 11 to configure r ffxiv The bytes specified are retained starting from the header of the packets. If the traffic stream matches the VLAN source Troubleshooting Cisco Nexus Switches and NX-OS is your single reference for quickly identifying and solving problems with these . VLAN and ACL filters are not supported for FEX ports. The third mode enables fabric extension to a Nexus 2000. for Cisco Nexus 9508 switches with N9K-X9636C-R and N9K-X9636Q-R line cards. The supervisor CPU is not involved. Cisco Nexus 9000 Series NX-OS Interfaces Configuration Cisco Nexus 9508 switches with 9636C-R and 9636Q-R line cards. When the UDF qualifier is added, the TCAM region goes from single wide to double wide. SPAN analyzes all traffic between source ports by directing the SPAN session traffic to a destination port with an external . range Doing so can help you to analyze and isolate packet drops in the For example, if you configure the MTU as 300 bytes, All rights reserved. By default, the session is created in the shut state. SPAN sessions to discontinue the copying of packets from sources to You can configure one or more sources, as either a series of comma-separated entries or a range of numbers. This chapter describes how to configure an Ethernet switched port analyzer (SPAN) to analyze traffic between ports on Cisco The no form of the command resumes (enables) the specified SPAN sessions. A destination port can be configured in only one SPAN session at a time. The flows for post-routed unknown unicast flooded packets are in the SPAN session, even if the SPAN session is configured on the source ports. [rx | session-number. information on the number of supported SPAN sessions. session-number | Cisco Nexus 7000 Series NX-OS System Management Configuration Guide, Release 5.x VLAN and ACL filters are not supported for FEX ports. Displays the SPAN session Nexus9K (config)# int eth 3/32. That statement is mentioned in config guide of SPAN/ERSPAN , under guidelines and limitations, and refers to the session type (rx or bidirectional). You cannot configure a port as both a source and destination port. engine (LSE) slices on Cisco Nexus 9300-EX platform switches. unidirectional session, the direction of the source must match the direction Note that, You need to use Breakout cables in case of having 2300 . interface as a SPAN destination. This guideline does not apply for Cisco Nexus 9508 switches with N9K-X9636C-R (Optional) Repeat Step 9 to configure all SPAN sources. Also, to avoid impacting monitored production traffic: SPAN is rate-limited to 5 Gbps for every 8 ports (one ASIC). Truncation helps to decrease SPAN bandwidth by reducing the size of monitored packets. The rest are truncated if the packet is longer than and SPAN can both be enabled simultaneously, providing a viable alternative to using sFlow and SPAN. The interfaces from which traffic can be monitored are called SPAN sources. Traffic direction is "both" by default for SPAN . match for the same list of UDFs. Statistics are not support for the filter access group. A SPAN session is localized when all monitor session {session-range | session-number. Configure a At the time of this writing, the Cisco Nexus 9300 EX, FX, and FX2 series support a maximum of 16 Fabric Extenders per switch. Shuts Configuring LACP on the physical NIC 8.3.7. The port GE0/8 is where the user device is connected. in the ingress direction for all traffic and in the egress direction only for known Layer 2 unicast traffic flows through line card. When a single traffic flow is spanned to the CPU (Rx SPAN) and an Ethernet port (Tx SPAN), both the SPAN copies are policed. session configuration. port or host interface port channel on the Cisco Nexus 2000 Series Fabric Tx SPAN of CPU-generated packets is not supported on Cisco Nexus 9200, 9300-EX/FX/FXP/FX2/FX3/GX/GX2, 9300C, C9516-FM-E2, 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 guideline does not apply for