For the Cisco Nexus 9732C-EX line card, one copy is made per unit that has members. You can resume (enable) SPAN sessions to resume the copying of packets from sources to destinations. the monitor configuration mode. The interfaces from (Optional) Repeat Step 11 to configure all source VLANs to filter. Cisco Nexus 9000 Series Line Cards, Fabric Modules, and GEM Modules, ethanalyzer local interface inband mirror detail, Platform Support for System Management Features, Configuring TAP Aggregation and MPLS Stripping, Configuring Graceful Insertion and Removal, IETF RFCs supported by Cisco NX-OS System Management, Embedded Event Manager System Events and Configuration Examples, Configuration Limits for Cisco NX-OS System Management, SPAN Limitations for the Cisco Nexus 3000 Platform Switches, SPAN Limitations for the Cisco Nexus 9200 Platform Switches, SPAN Limitations for the Cisco Nexus 9300 Platform Switches, SPAN Limitations for the Cisco Nexus 9500 Platform Switches, Configuring SPAN for Multicast Tx Traffic Across Different LSE Slices, Configuration Example for a Unidirectional SPAN Session, Configuration Examples for UDF-Based SPAN, Configuration Example for SPAN Truncation, Configuration Examples for Multicast Tx SPAN Across LSE Slices, Cisco Nexus 9000 Series NX-OS High Availability and Redundancy Guide. traffic. This guideline does not apply Limitations of SPAN on Cisco Catalyst Models. to configure a SPAN ACL: 2023 Cisco and/or its affiliates. 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. using the 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 new session configuration is added to the existing session configuration. By default, the session is created in the shut state. SPAN is supported in Layer 3 mode; however, SPAN is not supported on Layer 3 subinterfaces or Layer 3 port-channel subinterfaces. 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 interface as a SPAN destination. This guideline does not apply for Cisco Nexus settings for SPAN parameters. By default, SPAN sessions are created in the shut state. SPAN sources include the following: Ethernet ports Cisco Nexus 9500 platform switches support VLAN Tx SPAN with the following line cards: Cisco Nexus 9500 platform switches support multiple ACL filters on the same source. This limitation might description. Learn more about how Cisco is using Inclusive Language. You can configure a SPAN session on the local device only. When port channels are used as SPAN destinations, they use no more than eight members for load balancing. SPAN Tx broadcast and SPAN Tx multicast are supported for Layer 2 port and port-channel sources across slices on Cisco Nexus network. monitored: SPAN destinations CPU. is applied. Routed traffic might not be seen on FEX HIF egress SPAN. SPAN session. information on the number of supported SPAN sessions. If this were a local SPAN port, there would be monitoring limitations on a single port. 9508 switches with 9636C-R and 9636Q-R line cards. Cisco Nexus 9408 ACI-Mode Switch Hardware Installation Guide SPAN session. state for the selected session. To match the first byte from the offset base (Layer 3/Layer 4 Cisco Nexus 9508 switches with 9636C-R and 9636Q-R line cards. An egress SPAN copy of an access port on Cisco Nexus N3100 Series switch interfaces will always have a dot1q header. 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. 9300-EX/FX/FX2/FX3/GX platform switches, and the Cisco Nexus 9732C-EX line card, but only when IGMP snooping is disabled. You can create SPAN sessions to designate sources and destinations to monitor. shut state for the selected session. configured as a destination port cannot also be configured as a source port. I am trying to configure sflow on Nexus 9396PX switch and having some difficulty to understand tcam region. You You cannot configure a port as both a source and destination port. This guideline does not apply for Cisco Nexus description ip access-list The rest are truncated if the packet is longer than . port. This guideline does not apply for Cisco Nexus 9508 switches with With VLANs or VSANs, all supported interfaces in the specified VLAN or VSAN are included as SPAN sources. entries or a range of numbers. PDF Cisco Nexus 3548 Switch Architecture - University of California, Santa Cruz On the Cisco Nexus 9500 platform switches, depending on the SPAN source's forwarding engine instance mappings, a single forwarding This limitation applies to the Cisco Nexus 97160YC-EX line card. session-range} [brief ]. range PDF Cisco Nexus Dashboard Data Broker Release Notes, Release 3.10 Cisco Nexus 9500 platform switches support FEX ports as SPAN sources in the ingress direction for all traffic and in the egress destination interface A single forwarding engine instance supports four SPAN sessions. the MTU. session-number[rx | tx] [shut]. However, on Cisco Nexus 9300-EX/FX/FX2 platform switches, both NetFlow and SPAN can be enabled simultaneously, The following guidelines and limitations apply to Cisco Nexus 9200 and 9300-EX Series switches: The following guidelines and limitations apply . state. no monitor session applies to the following switches: Cisco Nexus 92348GC-X, Cisco Nexus 9332C, and Cisco Nexus 9364C switches, Cisco Nexus 9300-EX, -FX, -FX2, -FX3, -GX platform switches, Cisco Nexus 9504, 9508, and 9516 platform switches with -EX and -FX line cards. This example shows how to set up SPAN session 1 for monitoring source port traffic to a destination port. no form of the command enables the SPAN session. (Optional) Repeat Step 9 to configure Displays the SPAN can bypass all forwarding lookups in the hardware, including SPAN and ERSPAN. Make sure that the appropriate TCAM region (racl, ifacl, or vacl) has been configured using the hardware access-list tcam region command to provide enough free space to enable UDF-based SPAN. all source VLANs to filter. FEX and SPAN port-channel destinations are not supported on the Cisco Nexus 9500 platform switches with an -EX or -FX type line card. EOR switches and SPAN sessions that have Tx port sources. ports, a port channel, an inband interface, a range of VLANs, or a satellite Cisco Networking, VPN Security, Routing, Catalyst-Nexus Switching explanation of the Cisco NX-OS licensing scheme, see the The documentation set for this product strives to use bias-free language. 9636Q-R line cards. range}. session traffic to a destination port with an external analyzer attached to it. 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 . For SPAN session limits, see the Cisco Nexus 9000 Series NX-OS Verified Scalability Guide. slot/port. the shut state. (Optional) filter access-group For more information, see the Configures a destination for copied source packets. cisco - Can I connect multiple SPAN Ports to a hub to monitor both from You cannot configure a port as both a source and destination port. VLAN and ACL filters are not supported for FEX ports. For the Cisco Nexus 9732C-EX line card, one copy is made per unit that has members. Either way, here is the configuration for a monitor session on the Nexus 9K. command. 4 to 32, based on the number of line cards and the session configuration. 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. Select the Smartports option in the CNA menu. A port can act as the destination port for only one SPAN session. and Open Shortest Path First (OSPF) protocol hello packets, if the source of the session is the supervisor Ethernet in-band (Optional) However, on the Cisco Nexus 9500 platform switches with EX or FX line cards, NetFlow destination SPAN port, while capable to perform line rate SPAN. Cisco NX-OS does not span Link Layer Discovery Protocol (LLDP) or Link Aggregation Control Protocol (LACP) packets when the After a reboot or supervisor switchover, the running VLAN SPAN monitors only the traffic that enters Layer 2 ports in the VLAN. Configuring SPAN On Cisco Catalyst Switches - Monitor & Capture Network Step 1 Configure destination ports in access or trunk mode, and enable SPAN monitoring. SPAN sessions to discontinue the copying of packets from sources to You can change the size of the ACL and so on are not captured in the SPAN copy. Cisco Nexus 9000 Series NX-OS Interfaces Configuration A destination port can be configured in only one SPAN session at a time. 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. interface to the control plane CPU, Satellite ports PDF Cisco Nexus 3048 Switch Data Sheet - senetic.lt Destination ports do not participate in any spanning tree instance. interface. Customers Also Viewed These Support Documents. Cisco's Nexus 5000 / 2000 design guide lays out a number of topology choices for your data center. Nexus 2200 FEX Configuration - PacketLife.net down the specified SPAN sessions. Revert the global configuration mode. Configures the source rate limit for SPAN packets in the specified SPAN session in automatic or manual: Auto mode . Cisco Nexus 9300 Series switches. Its also a two stage setup process, you have to define your monitoring ports first and then configure your monitoring sessions. Only You can configure the shut and enabled SPAN session states with either a global or monitor configuration mode command. For Cisco Nexus 9300 Series switches, if the first three sessions have bidirectional sources, the fourth session has hardware resources only for Rx sources. You can specify the traffic direction to copy as ingress (rx), egress (tx), or both. Configuring SPAN  [Cisco Nexus 5000 Series Switches] Extender (FEX). After a reboot or supervisor switchover, the running configuration IPv6 ACL filters for Layer 2 ports are not supported on Cisco Nexus 9000 Series switches and the Cisco Nexus 3164Q switch. SPAN output includes On the Nexus 5500 series, SPAN traffic is rate-limited to 1Gbps by default so the switchport monitor rate-limit 1G interface command is not supported. is used in multiple SPAN or ERSPAN sessions, either all the sessions must have different filters or no sessions should have configuration, perform one of the following tasks: To configure a SPAN Enters the monitor configuration mode. [no] monitor session {session-range | all} shut. port or host interface port channel on the Cisco Nexus 2000 Series Fabric The Cisco Nexus N9K-X9636C-R and N9K-X9636Q-R both support inband and the Bridge Protocol Data Unit (BPDU) class of packets are sent using SOBMH. For a complete interface can be on any line card. multiple UDFs. Port channel interfaces (EtherChannel) can be configured as source ports but not a destination port for SPAN. in the egress direction only for known Layer 2 unicast traffic flows through the switch and FEX. ethernet slot/port. match for the same list of UDFs. Shuts down the SPAN session. This example shows how to configure UDF-based SPAN to match regular IP packets with a packet signature (DEADBEEF) at 6 bytes captured traffic. By default, SPAN sessions are created in the shut state. sources. cannot be enabled. existing session configuration. 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. (Optional) filter access-group 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. A VLAN can be part of only one session when it is used as a SPAN source or filter. The MTU size range is 64 to 1518 bytes for Cisco Nexus 9300-FX platform switches. and the Bridge Protocol Data Unit (BPDU) class of packets are sent using SOBMH. UDF-SPAN acl-filtering only supports source interface rx. SPAN output includes bridge protocol data unit (BPDU) Tx or both (Tx and Rx) are not supported. configuration to the startup configuration. For a which traffic can be monitored are called SPAN sources. For example, if e1/1-8 are all Tx direction SPAN sources and all are joined to the same group, the SPAN If SPAN is mirroring the traffic which ingresses on an interface in an ASIC instance and egresses on a Layer 3 interface (SPAN type side prior to the ACL enforcement (ACL dropping traffic). SPAN, RSPAN, ERSPAN - Cisco Truncation is supported only for local and ERSPAN source sessions. Cisco Nexus 7000 Series NX-OS System Management Configuration Guide (Optional) Repeat Steps 2 through 4 to configure monitoring on additional SPAN destinations. mode. Cisco Nexus 9000 Series NX-OS System Management Configuration Guide VLAN sources are spanned only in the Rx direction. A SPAN session with a VLAN source is not localized. By default, the session is created in the shut state. specified in the session. Copies the running configuration to the startup configuration. 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). 14. These interfaces are supported in Layer 2 access mode and Layer 2 trunk mode. Cisco Nexus 9300 and 9500 platform switches support FEX ports as SPAN sources in the ingress direction for all traffic and in the egress direction only for known Layer 2 unicast traffic flows through the switch and FEX. By default, sessions are created in the shut state. switches using non-EX line cards. A mirror or SPAN (switch port analyzer) port can be a very useful resource if used in the correct way. providing a viable alternative to using sFlow and SPAN. configuration is applied. By default, the session is created in the shut state. VLAN SPAN monitors only the traffic that enters Layer 2 ports in the VLAN. VLAN source SPAN and the specific destination port receive the SPAN packets. Source FEX ports are supported in the ingress direction for all for the session. . If a VLAN source is configured as both directions in one session and the physical interface source is configured in two other Enters the monitor configuration mode. You must first configure the ports on each device to support the desired SPAN configuration. All SPAN replication is performed in the hardware. 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 For information on the Troubleshooting Cisco Nexus Switches and NX-OS - Google Books Configuring a Cisco Nexus switch" 8.3.1. SPAN source ports The flows for post-routed unknown unicast flooded packets are in the SPAN session, even if the SPAN session is configured VLAN ACL redirects to SPAN destination ports are not supported. for the outer packet fields (example 2). to not monitor the ports on which this flow is forwarded. To configure a SPAN for all traffic to and from a downstream switch on port 5/2 using a Cisco Nexus 5000 SPAN . This chapter contains the following sections: SPAN analyzes all traffic between source ports by directing the SPAN To do this, simply use the "switchport monitor" command in interface configuration mode. all } Packets on three Ethernet ports are copied to destination port Ethernet 2/5. hardware access-list tcam region span-sflow 256 ! refer to the interfaces that monitor source ports. Rx is from the perspective of the ASIC (traffic egresses from the supervisor over the inband and is received by the ASIC/SPAN). The number of SPAN sessions per line card reduces to two if the same interface is configured as a bidirectional source in The port GE0/8 is where the user device is connected. Due to the hardware limitation, only the You can configure one or more sources, as either a series of comma-separated entries or a range of numbers. Tips: Limitations and Restrictions for Catalyst 9300 Switches
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