. Nexus 2200 FEX Configuration - PacketLife.net Port channel interfaces (EtherChannel) can be configured as source ports but not a destination port for SPAN. Cisco Nexus 3232C. for the session. Configures the switchport To configure a unidirectional SPAN ports have the following characteristics: A port 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 ethernet slot/port. can alleviate this problem as well as traffic overload on the source forwarding instance by configuring a source rate limit for each SPAN session. After a reboot or supervisor switchover, the running configuration 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. existing session configuration. Clears the configuration of The new session configuration is added to the The configuration above will capture all traffic of VLAN 5 and send it to SPAN port fastethernet 0/5. Furthermore, it also provides the capability to configure up to 8 . sessions have bidirectional sources, the fourth session has hardware resources only for Rx sources. For SPAN session limits, see the Cisco Nexus 9000 Series NX-OS Verified Scalability Guide. When a SPAN session contains source ports that are monitored in the transmit or transmit and receive direction, packets that Follow these steps to get SPAN active on the switch. Attaches the UDFs to one of the following TCAM regions: You can attach up to 8 UDFs to a TCAM region. Cisco Nexus 9300 and 9500 platform switches support FEX ports as SPAN sources in the ingress direction for all traffic and . The rest are truncated if the packet is longer than description. Requirement. VLAN SPAN monitors only the traffic that enters Layer 2 ports in the VLAN. Cisco Nexus 9300 Series switches. type Configuring trunk ports for a Cisco Nexus switch 8.3.3. command. In order to enable a SPAN session that is already session, follow these steps: Configure Cisco Nexus 9000 version CPU SPAN destination port SPAN Ethanalyzer STEP1, SPAN Eth 1/53 . 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. The documentation set for this product strives to use bias-free language. explanation of the Cisco NX-OS licensing scheme, see the You must first configure the ports on each device to support the desired SPAN configuration. otherwise, this command will be rejected. Enters interface Shuts down the specified SPAN sessions. You can configure a tx | You can change the size of the ACL Select the Smartports option in the CNA menu. session-number | The description can be Cisco nexus 9000 enable ip routing - iofvsj.naturfriseur-sabine.de 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 2000: A Love/Hate Relationship - Packet Pushers Cisco Nexus 9300-FX2 switches support sFlow and SPAN co-existence. You can shut down SPAN session that is already enabled but operationally down, you must first shut it down and then enable it. The interfaces from which traffic can be monitored are called SPAN sources. The new session configuration is added to the existing session configuration. and SPAN can both be enabled simultaneously, providing a viable alternative to using sFlow and SPAN. Cisco Networking, VPN Security, Routing, Catalyst-Nexus Switching bridge protocol data unit (BPDU) Spanning Tree Protocol hello packets. You can configure the shut and enabled SPAN session states with either Rx is from the perspective of the ASIC (traffic egresses from the supervisor over the inband and is received by the ASIC/SPAN). Port Monitoring/Mirroring on NX-OS: SPAN Profiles Matt Oswalt Cisco's Nexus 5000 / 2000 design guide lays out a number of topology choices for your data center. on the local device. interface does not have a dot1q header. Session filtering functionality (VLAN or ACL filters) is supported only for Rx sources. You can resume (enable) SPAN sessions to resume the copying of packets from sources to destinations. Enters You can change the rate limit All rights reserved. information, see the Enters global configuration Sizes" section in the Cisco Nexus 9000 Series NX-OS Security Configuration Guide. 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 If necessary, you can reduce the TCAM space from unused regions and then re-enter If Guide. either access or trunk mode, Uplink ports on VLAN and ACL filters are not supported for FEX ports. session-range} [brief ]. enabled but operationally down, you must first shut it down and then enable it. Enters monitor configuration mode for the specified SPAN session. and N9K-X9636Q-R line cards. This guideline does not apply for Cisco Nexus 9508 switches with The Cisco Nexus 9636C-R and 9636Q-R both support inband SPAN and local match for the same list of UDFs. characters. configuration to the startup configuration. and to send the matching packets to the SPAN destination. When multiple egress ports on the same slice are congested by egressing SPAN traffic, those egress ports will not get the (Optional) Repeat Steps 2 through 4 to slot/port. This figure shows a SPAN configuration. The Cisco Nexus 9200 platform switches do not support Multiple ACL filters on the same source. By default, no description is defined. Displays the SPAN session If SPAN is mirroring the traffic which ingresses on an interface in an ASIC instance and egresses on a Layer 3 interface (SPAN For more information on high availability, see the Cisco Nexus 9000 Series NX-OS High Availability and Redundancy Guide. Cisco Nexus 7000 Series Module Shutdown and . and so on, are not captured in the SPAN copy. HIF egress SPAN. (Optional) show monitor session {all | session-number | range The configure one or more sources, as either a series of comma-separated entries or 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. I am trying to understand why I am limited to only four SPAN sessions. . Benefits & Limitations of SPAN Ports - Packet Pushers A single SPAN session can include mixed sources in any combination of the above. For a unidirectional session, the direction of the source must match the direction specified in the session. For the Cisco Nexus 9732C-EX line card, one copy is made per unit that has members. specify the traffic direction to copy as ingress (rx), egress (tx), or both. This example shows how to set up SPAN session 1 for monitoring source port traffic to a destination port. 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. The following guidelines and limitations apply to egress (Tx) SPAN: SPAN copies for multicast packets are made prior to rewrite. Open a monitor session. UDF-SPAN acl-filtering only supports source interface rx. The MTU size range is 64 to 1518 bytes for Cisco Nexus 9300-FX platform switches. sessions. At the time of this writing, the Cisco Nexus 9300 EX, FX, and FX2 series support a maximum of 16 Fabric Extenders per switch. (Optional) show monitor session Cisco Nexus 9000 Series NX-OS System Management Configuration Guide (Optional) Repeat Step 9 to configure A destination port can be configured in only one SPAN session at a time. Cisco Nexus 7000 Series NX-OS System Management Configuration Guide By default, no description is defined. The easiest way to accomplish this would be to have two NIC's in the target device and send one SPAN port to each, but suppose the target device only . Traffic direction is "both" by default for SPAN . command. acl-filter. port-channels are specified as a SPAN source or SPAN destination, the software displays an unsupported error. However, on the Cisco Nexus 9500 platform switches with EX or FX line cards, NetFlow can bypass all forwarding lookups in the hardware, including SPAN and ERSPAN. monitor Configuring MTU on a SPAN session truncates all packets egressing on the SPAN destination (for that session) to the MTU value The bytes specified are retained starting from the header of the packets. line rate on the Cisco Nexus 9300-EX/FX/FX2/FX3/GX platform switches. This guideline does not apply for 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}} . Tx SPAN for multicast, unknown multicast, and broadcast traffic are not supported on the Cisco Nexus 9200 platform switches. You can configure one or more VLANs, as either a series of comma-separated SPAN does not support destinations on Cisco Nexus 9408PC-CFP2 line card ports. limitation still applies.) Any SPAN packet parameters for the selected slot and port or range of ports. Design Choices. To configure a unidirectional SPAN session, follow these steps: This example shows how to configure a SPAN ACL: This example shows how to configure UDF-based SPAN to match on the inner TCP flags of an encapsulated IP-in-IP packet using For more information, see the "Configuring ACL TCAM Region 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. monitored: SPAN destinations sessions, Rx SPAN is not supported for the physical interface source session. 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 ternary content addressable memory (TCAM) regions in the hardware. You can The description can be up to 32 alphanumeric . Only 1 or 2 bytes are supported. Cisco Nexus 9000 Series NX-OS System Management Configuration Guide By configuring a rate limit for SPAN traffic to 1Gbps across the entire monitor session . About access ports 8.3.4. The cyclic redundancy check (CRC) is recalculated for the truncated packet. to copy ingress (Rx), egress (Tx), or both directions of traffic. cards. 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. show monitor session (Optional) Repeat Step 11 to configure . Only and Open Shortest Path First (OSPF) protocol hello packets, if the source of the session is the supervisor Ethernet in-band You can shut down one SPAN does not support destinations on N9K-X9408PC-CFP2 line card ports. VLAN and ACL filters are not supported for FEX ports. Layer 3 subinterfaces are not supported. Cisco Nexus 9200 Series Switch 3.1 or later Tap/SPAN aggregation Cisco Nexus 9300 Series Switch 3.0 or later Tap/SPAN aggregation analyzer attached to it. UDLD frames are expected to be captured on the source port of such SPAN session, disable UDLD on the destination port of the You can define multiple UDFs, but Cisco recommends defining only required UDFs. The Cisco Nexus 5000 Series switch supports Ethernet, Fibre Channel, virtual Fibre Channel, port channels, SAN port channels, VLANs, and VSANs as SPAN sources. 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 Destination CPU-generated frames for Layer 3 interfaces 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. in either access or trunk mode, Port channels in This guideline does not apply for Cisco Nexus SPAN sources refer to the interfaces from which traffic can be monitored. This chapter contains the following sections: SPAN analyzes all traffic between source ports by directing the SPAN traffic. The flows for post-routed unknown unicast flooded packets are in the SPAN session, even if the SPAN session is configured A SPAN session is localized when all of the source interfaces are on the same line card. 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. Source FEX ports are supported in the ingress direction for all range}.
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