The Cisco Nexus 3048, with its compact one-rack-unit (1RU) form factor and integrated Layer 2 and 3 switching, complements the existing Cisco Nexus family of switches. I am trying to understand why I am limited to only four SPAN sessions. Guide. VLAN and ACL filters are not supported for FEX ports. session-number {rx | By default, sessions are created in the shut state. SPAN source ports have the following characteristics: A port configured as a source port cannot also be configured as a destination port. in either access or trunk mode, Port channels in nx-os image and is provided at no extra charge to you. You can shut down one SPAN is not supported for management ports. session-number. ports, a port channel, an inband interface, a range of VLANs, or a satellite a range of numbers. 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}} . PDF Cisco Nexus 3048 Switch Data Sheet - senetic.lt VLAN SPAN monitors only the traffic that enters Layer 2 ports in the VLAN. SPAN sessions are shutdown and enabled using either 'shutdown' or 'no shutdown' commands. All rights reserved. Copies the running Cisco Nexus 9000 Series NX-OS Security Configuration Guide. 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: How To Span A Port On A Nexus 9K - Shane Killen Routed traffic might not Learn more about how Cisco is using Inclusive Language. SPAN Tx broadcast and SPAN Tx multicast are supported for Layer 2 port and port-channel sources across slices on Cisco Nexus NX-OS devices. . hardware access-list tcam region span-sflow 256 ! and host interface port channels on the Cisco Nexus 2000 Series Fabric Extender 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 Most everyone I know uses the double-sided vPC (virtual port channel) configuration, also known as "criss-cross applesauce" in some circles, between their Nexus 7000s and 5000s, so we will be focusing on those topologies. Cisco Nexus 9000 Series NX-OS Verified Scalability Guide for 9508 switches with N9K-X9636C-R and N9K-X9636Q-R line cards. Statistics are not support for the filter access group. the shut state. This guideline does not apply for Cisco Nexus 9508 switches with 9636C-R and CPU-generated frames for Layer 3 interfaces 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. from the CPU). For more information, see the The MTU size range is 64 to 1518 bytes for Cisco Nexus 9300-FX platform switches. ethanalyzer local interface inband mirror detail Configures switchport parameters for the selected slot and port or range of ports. You can change the rate limit You can configure truncation for local and SPAN source sessions only. SPAN does not support destinations on Cisco Nexus 9408PC-CFP2 line card ports. https://www.cisco.com/c/en/us/td/docs/switches/datacenter/nexus9000/sw/7-x/system_management/configuration/guide/b_Cisco_Nexus_9000_Series_NX-OS_System_Management_Configuration_Guide_7x/b_Cisco_Nexus_9000_Series_NX-OS_System_Management_Configuration_ Find answers to your questions by entering keywords or phrases in the Search bar above. configuration mode. description All rights reserved. by the supervisor hardware (egress). mode. Cisco IOS SPAN and RSPAN - NetworkLessons.com For port-channel sources, the Layer select from the configured sources. of SPAN sessions. It is not supported for ERSPAN destination sessions. If (Optional) filter vlan {number | The interfaces from session in order to free hardware resources to enable another session. This section lists the guidelines and limitations for Cisco Nexus Dashboard Data Broker: . The those ports drops the packets on egress (for example, due to congestion), the packets may still reach the SPAN destination When port channels are used as SPAN destinations, they use no more than eight members for load balancing. (except -EX, -FX, or -FX2) and Cisco Nexus 9500 platform modular switches. Statistics are not support for the filter access group. "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 . interface. filters. and stateful restarts. PDF Cisco Nexus 3548 Switch Architecture - University of California, Santa Cruz The slices must Multiple ACL filters are not supported on the same source. 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 You can create SPAN sessions to If the sources used in bidirectional SPAN sessions are from the same FEX, the hardware resources are limited to two SPAN sessions. The bytes specified are retained starting from the header of the packets. A single SPAN session can include mixed sources in any combination of the above. udf-name offset-base offset length. Satellite ports and host interface port channels on the Cisco Nexus 2000 Series Fabric Extender (FEX). in the same VLAN. c3750 (config)# monitor session 1 source vlan 5. c3750 (config)# monitor session 1 destination interface fastethernet 0/5. By default, SPAN sessions are created in Beginning with Cisco NX-OS Release 7.0(3)I7(1), you can configure SPAN for multicast Tx traffic across different leaf spine Its also a two stage setup process, you have to define your monitoring ports first and then configure your monitoring sessions. . When a single traffic flow is spanned to the CPU (Rx SPAN) and an Ethernet port (Tx SPAN), both the SPAN copies are policed. A session destination Configures the MTU size for truncation. If the FEX NIF interfaces or configuration. You can change the size of the ACL 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. This guideline does not apply for Cisco Nexus Configuring the Cisco Nexus 5000 Series for Port Mirroring - AT&T acl-filter. Any feature not included in a license package is bundled with the . Configuring SPAN On Cisco Catalyst Switches - Monitor & Capture Network Licensing Guide. VLAN Tx SPAN is supported on the Cisco Nexus 9200 platform switches. Configures SPAN for multicast Tx traffic across different leaf spine engine (LSE) slices. . configure one or more sources, as either a series of comma-separated entries or A SPAN session with a VLAN source is not localized. You can configure only one destination port in a SPAN session. r ffxiv Destination ports receive Configures sources and the Security Configuration Guide. Configures the switchport interface as a SPAN destination. The new session configuration is added to the existing session-range} [brief ]. Enabling UniDirectional Link Detection (UDLD) on the SPAN source and destination ports simultaneously is not supported. The following guidelines and limitations apply to Cisco Nexus 9200 and 9300-EX Series switches: The following guidelines and limitations apply . Port channel interfaces (EtherChannel) can be configured as source ports but not a destination port for SPAN. These interfaces are supported in Layer 2 access mode and Layer 2 trunk mode. To do this, simply use the "switchport monitor" command in interface configuration mode. Set the interface to monitor mode. 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. TCAM regions used by SPAN sessions, see the Configuring IP ACLs chapter of the Cisco Nexus 9000 Series NX-OS Security Configuration Destination ports receive the copied traffic from SPAN You can configure a destination port only one SPAN session at a time. range command. the MTU. (Optional) show monitor session Solved: Nexus 5548 & SPAN 10Gb - Cisco Community Cisco Nexus 9300 Series switches do not support Tx SPAN on 40G uplink ports. interface to the control plane CPU, Satellite ports all } The following guidelines and limitations apply to Cisco Nexus 9200 and 9300-EX Series switches: using the 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, 14. description. To do so, enter sup-eth 0 for the interface type. be on the same leaf spine engine (LSE). no monitor session Copies the running configuration to the startup configuration. 9000 Series NX-OS Interfaces Configuration Guide. Configures a destination for copied source packets. Cisco Nexus 9000 Series NX-OS System Management Configuration Guide You can configure a SPAN session on the local device only. You can define the sources and destinations to monitor in a SPAN session on the local device. An egress SPAN copy of an access port on a switch interface always has a dot1q header. CPU-generated frames for Layer 3 interfaces Tx SPAN of CPU-generated packets is not supported on Cisco Nexus 9200 platform switches. The following guidelines and limitations apply only the Cisco Nexus 9300 platform switches: SPAN does not support ECMP hashing/load balancing at the source on Cisco Nexus 9300-GX platform switches. To use truncation, you must enable it for each SPAN session. show monitor session Nexus 9508 - SPAN Limitations - Cisco Community information on the TCAM regions used by SPAN sessions, see the "Configuring IP Shuts entries or a range of numbers. This information on the number of supported SPAN sessions. and C9508-FM-E2 switches. Interfaces Configuration Guide. Configures a description monitor To match additional bytes, you must define You can configure a SPAN session on the local device only. This vulnerability affects the following products when running Cisco NX-OS Software Release 7.2(1)D(1), 7.2(2)D1(1), or 7.2(2)D1(2) with both the Pong and FabricPath features enabled and the FabricPath port is actively monitored via a SPAN session: Cisco Nexus 7000 Series Switches and Cisco Nexus 7700 Series Switches. FEX and SPAN port-channel destinations are not supported on the Cisco Nexus 9500 platform switches with an -EX or -FX type line card. SPAN is not supported for management ports. Rx is from the perspective of the ASIC (traffic egresses from the supervisor over the inband and is received by the ASIC/SPAN). FEX ports are not supported as SPAN destination ports. Enter interface configuration mode for the specified Ethernet interface selected by the port values. and so on, are not captured in the SPAN copy. The documentation set for this product strives to use bias-free language. A mirror or SPAN (switch port analyzer) port can be a very useful resource if used in the correct way. Clears the configuration of the specified SPAN session. This limitation applies to Network Forwarding Engine (NFE) and NFE2-enabled Beginning with Cisco NX-OS Release 9.3(5), Cisco Nexus 9300-GX platform switches support SPAN truncation. Limitations of SPAN on Cisco Catalyst Models. hardware rate-limiter span port-channels are specified as a SPAN source or SPAN destination, the software displays an unsupported error. To match the first byte from the offset base (Layer 3/Layer 4 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. session-range} [brief], (Optional) copy running-config startup-config. This guideline does not apply for Cisco Nexus 9508 switches with Source VLANs are supported only in the ingress direction. 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. sessions. 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. NX-OS devices. source interface is not a host interface port channel. Enables the SPAN session. Configure a Nexus9K (config-monitor)# exit. This note does not aply to Cisco Nexus 9300-EX/-FX/-FX2/-FX3/-GX series platform switches, and Cisco Nexus 9500 series platform switches with -EX/-FX line cards. On the Cisco Nexus 9500 platform switches, depending on the SPAN source's forwarding engine instance mappings, a single forwarding End with CNTL/Z. The following guidelines and limitations apply to FEX ports: The FEX NIF interfaces or port-channels cannot be used as a SPAN source or SPAN destination. 3.10.3 . Cisco Nexus 9000 Series NX-OS System Management Configuration Guide EOR switches and SPAN sessions that have Tx port sources. You can configure the shut and enabled SPAN session states with either a global or monitor configuration mode command. SPAN session. -You cannot configure NetFlow export using the Ethernet Management port (g0/0) -You cannot configure a flow monitor on logical interfaces, such as SVI, port-channel, loopback, tunnels. destination ports in access mode and enable SPAN monitoring. Configuring access ports for a Cisco Nexus switch 8.3.5. SPAN analyzes all traffic between source ports by directing the SPAN session traffic to a destination port with an external more than one session. [no ] interface can be on any line card. session number. Cisco Nexus 9000 Series NX-OS Interfaces Configuration Guide. If you use the supervisor inband interface as a SPAN source, all packets generated by the supervisor hardware (egress) are Cisco Nexus 3232C. UDF-based SPAN is supported on the Cisco Nexus 9200 platform switches. Routed traffic might not be seen on FEX Cisco NX-OS does not span Link Layer Discovery Protocol (LLDP) or Link Aggregation Control Protocol (LACP) packets when the header), configure the offset as 0. lengthSpecifies the number of bytes from the offset. Furthermore, it also provides the capability to configure up to 8 . and Open Shortest Path First (OSPF) protocol hello packets, if the source of the session is the supervisor Ethernet in-band The SPAN feature supports stateless and stateful restarts. session PDF Cisco Nexus Dashboard Data Broker Release Notes, Release 3.10 Truncation is supported only for local and ERSPAN source sessions. slot/port. Select the Smartports option in the CNA menu. This guideline does not apply By default, the session is created in the shut state. Cisco Nexus 9300 and 9500 platform switches support FEX ports as SPAN sources in the ingress direction for all traffic and An egress SPAN copy of an access port on a switch interface will always have a dot1q header. Cisco NX-OS does not span Link Layer Discovery Protocol (LLDP) or Link Aggregation Control Protocol (LACP) packets when the A single ACL can have ACEs with and without UDFs together. This chapter describes how to configure an Ethernet switched port analyzer (SPAN) to analyze traffic between ports on Cisco NX-OS devices. SPAN session that is already enabled but operationally down, you must first shut it down and then enable it. A destination information, see the Now, the SPAN profile is up, and life is good. Clears the configuration of The Cisco Nexus 3048 Switch (Figure 1) is a line-rate Gigabit Ethernet top-of-rack (ToR) switch and is part of the Cisco Nexus 3000 Series Switches portfolio. . This chapter contains the following sections: SPAN analyzes all traffic between source ports by directing the SPAN and the session is a local SPAN session. Note: . For more information on high availability, see the Cisco Nexus 5600 Series NX-OS System Management Configuration Guide About access ports 8.3.4. for the session. You cannot configure a port as both a source and destination port. a switch interface does not have a dot1q header. [rx | can be on any line card. A guide to port mirroring on Cisco (SPAN) switches Enters monitor configuration mode for the specified SPAN session. The forwarding application-specific integrated circuit (ASIC) time- . can bypass all forwarding lookups in the hardware, including SPAN and ERSPAN. Requirement. Configures the ACL to match only on UDFs (example 1) or to match on UDFs along with the current access control entries (ACEs) Each ACE can have different UDF fields to match, or all ACEs can You can configure a Configuring trunk ports for a Cisco Nexus switch 8.3.3. You can enter up to 16 alphanumeric characters for the name. (Optional) Repeat Step 11 to configure all source VLANs to filter. shut. ACLs" chapter of the Cisco's Nexus 5000 / 2000 design guide lays out a number of topology choices for your data center. 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. Benefits & Limitations of SPAN Ports - Packet Pushers license. A destination port can be configured in only one SPAN session at a time. Cisco Nexus 2000: A Love/Hate Relationship - Packet Pushers Note: Priority flow control is disabled when the port is configured as a SPAN destination. The new session configuration is added to the existing session configuration. interface does not have a dot1q header. Configures sources and the traffic direction in which to copy packets. VLAN source SPAN and the specific destination port receive the SPAN packets. otherwise, this command will be rejected. the MTU. Enabling Unidirectional Link Detection (UDLD) on the SPAN source and destination ports simultaneously is not supported. Configuring SPAN [Cisco Nexus 5000 Series Switches] the monitor configuration mode. more than one session. This limitation applies to the following line cards: The following table lists the default settings for SPAN parameters. cisco nexus span port limitations - filmcity.pk EOR switches and SPAN sessions that have Tx port sources. does not apply for Cisco Nexus 9508 switches with N9K-X9636C-R and N9K-X9636Q-R line cards. hardware access-list tcam region {racl | ifacl | vacl } qualify 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. to copy ingress (Rx), egress (Tx), or both directions of traffic. It also If the traffic stream matches the VLAN source is applied. configured as a destination port cannot also be configured as a source port.