How many RSPAN ports can a Catalyst 6500 switch have?
Some of their ports are configured to be destination for an RSPAN session. Currently, a Catalyst 6500/6000 can have up to 24 RSPAN destination ports, for one or several different sessions. You can also notice that S4 is both a destination and an intermediate switch.
What is Cisco Catalyst 6500 VSS?
Cisco 6500 VSS configuration The Cisco Catalyst 6500 Series Virtual Switching System (VSS) allows the clustering of two chassis together into a single, logical entity. This technology allows for enhancements in all areas of network design, including high availability, scalability, management, and maintenance.
Which session is always used in the Catalyst 6500 chassis?
SPAN Session is Always Used With an FWSM in the Catalyst 6500 Chassis. When you use Supervisor Engine 720 with an FWSM in the chassis that runs Cisco Native IOS, by default a SPAN session is used. If you check for unused sessions with the show monitor command, session 1 is used: Cat6K#show monitor Session 1-----Type : Service Module Session
Which ports are available on the catalyst 5500/5000 and 6500/6000?
The default is enable. This feature is available on the Catalyst 5500/5000 and 6500/6000, CatOS 5.1 and later. spanning port 15/1 —On the Catalyst 6500/6000, you can use port 15/1 (or 16/1) as a SPAN source. The port can monitor the traffic that is forwarded to the Multilayer Switch Feature Card (MSFC).
How do I check the ports on a Cisco switch?
To display the serial (console) port configuration, use the show serial command. This command has no arguments or keywords. 9600, 8, off, 1, none. This section lists the config commands to configure controller ports and interfaces.
How do I check my switch ports?
To check the mode setting for a port on the switch, use either the Port Status screen in the menu interface or show interfaces brief in the CLI (see Viewing port status and configuration (CLI)).
How do I find a particular interface log on a Cisco switch?
To view your switch logs or related configuration information, use any of the following commands:show logging console. ... show logging last number. ... show logging logfile [ start-time yyyy mmm dd hh : mm : ss ] [ end-time yyyy mmm dd hh : mm : ss ]
How do I enable port mirroring on a Cisco switch?
1:424:26Cisco Switch Port Mirroring / Monitor Port Setup - YouTubeYouTubeStart of suggested clipEnd of suggested clipThat's what I'm going to configure is a local span session. You can do remote you can span VLANs. SoMoreThat's what I'm going to configure is a local span session. You can do remote you can span VLANs. So we're not going to get into all that we just basically want to configure one port.
How do I check my port channel status?
Use the command, show port-channel summary, to verify the number of port-channels already configured. You can have a maximum of 256 port channels on the Cisco Nexus 1000V. Use this procedure to force the physical interface to take on the characteristics of the port channel.
How do I check if a Cisco switch has disabled ports?
When a port is in error-disabled state, it is effectively shut down and no traffic is sent or received on that port. The port LED is set to the orange color and, when you issue the show interfaces command, the port status shows as Errdisabled. To find out the main reason for err-disable state.
Which command shows the status of the switch interfaces?
You can display the currently active user sessions on the switch using the show users command.
How do I check the fiber ports on a Cisco switch?
Log in to the switch console to run the privileged EXEC mode of the Cisco switch, use the fiber-ports-optical-transceiver command. The Output Power (mWatt) field in the command output indicates the received power of the optical module, and the Input Power (mWatt) field indicates the transmit power.
How do I know if port mirroring is working?
How to Verify Port Mirroring? In general, users can verify port mirroring results by the software of capturing packet. Run the software on the monitoring device, the configuration succeeds when obtaining the packet sent or received by the source port.
What is port mirroring in Cisco switch?
Traffic mirroring, which is sometimes called port mirroring, or Switched Port Analyzer (SPAN) is a Cisco proprietary feature that enables you to monitor network traffic passing in, or out of, a set of ports. You can then pass this traffic to a destination port on the same router.
What is port mirroring?
Port mirroring is an approach to monitoring network traffic that involves forwarding a copy of each packet from one network switch port to another. Port mirroring enables the administrator to keep close track of switch performance by placing a protocol analyzer on the port that's receiving the mirrored data.
How do I find my LAN port number?
How to find your port number on WindowsType “Cmd” in the search box.Open Command Prompt.Enter the netstat -a command to see your port numbers.
How do I find my Cisco IP port?
Type at the console prompt sh arp to find the ip address and mac address then type sh mac-address-table to find the the mac and port.
Span on Catalyst Express 500/520
Catalyst Express 500 or Catalyst Express 520 supports only the SPAN feature. Catalyst Express 500/520 ports can be configured for SPAN only by usin...
Span on The Catalyst 2900Xl/3500Xl Switches
The port monitoring feature is not very extensive on the Catalyst 2900XL/3500XL. Therefore, this feature is relatively easy to understand.You can c...
Span on The Catalyst 2948G-L3 and 4908G-L3
The Catalyst 2948G-L3 and Catalyst 4908G-L3 are fixed configuration switch routers or Layer 3 switches. The SPAN feature on a Layer 3 switch is cal...
Span on The Catalyst 8500
A very basic SPAN feature is available on the Catalyst 8540 under the name port snooping. Refer to the current Catalyst 8540 documentation for addi...
Span on The Catalyst 2900, 4500/4000, 5500/5000, and 6500/6000 Series Switches That Run Catos
This section is applicable only for these Cisco Catalyst 2900 Series Switches: 1. Cisco Catalyst 2948G-L2 Switch 2. Cisco Catalyst 2948G-GE-TX Swit...
Span on The Catalyst 2940, 2950, 2955, 2960, 2970, 3550, 3560, 3560-E, 3750 and 3750-E Series Switches
These are guidelines for the configuration of the SPAN feature on the Catalyst 2940, 2950, 2955, 2960, 2970, 3550, 3560, 3560-E, 3750, and 3750-E S...
Span on The Catalyst 4500/4000 and Catalyst 6500/6000 Series Switches That Run Cisco iOS System Software
The SPAN feature is supported on the Catalyst 4500/4000 and Catalyst 6500/6000 Series Switches that run Cisco IOS system software. Both of these sw...
Performance Impact of Span on The Different Catalyst Platforms
This is a very simplistic view of the 2900XL/3500XL Switches internal architecture:The ports of the switch are attached to satellites that communic...
Frequently Asked Questions and Common Problems
Connectivity issues because of the misconfiguration of SPAN occur frequently in CatOS versions that are earlier than 5.1. With these versions, only...
How to upgrade VSS chassis?
To apply the upgrade image to the second chassis, completing the eFSU, enter the issu commitversion command. The VSS standby chassis is reloaded and booted with the new upgrade image, initializing again as the VSS standby chassis. As in the loadversion stage, the throughput of the VSS is temporarily reduced while the modules are reloaded and initialized. After the successful reload and reboot of the VSS standby chassis, the VSS upgrade process is complete.
How to stop a rollback timer?
If the timer expires, the upgraded chassis reloads and reverts to the previous software version. To stop the rollback timer, enter the issu acceptversion command. Prior to starting the eFSU process, you can disable the rollback timer or configure it to a value up to two hours (the default is 45 minutes).
How is a VSS formed?
A VSS is formed when the two chassis and the VSL link between them become operational. The peer chassis communicate over the VSL to negotiate the chassis roles.
What is ICS in VSS?
When you use VSS quad-supervisor uplink forwarding, the in-chassis standby (ICS) supervisor engine acts as a DFC line card. Only one processor, the SP processor, acts as the DFC line card; the RP processor is reset to ROMMON. During the bootup, once the chassis level role is resolved, the ICS downloads the image from the in-chassis active (ICA) supervisor engine. Once the supervisor engine is booted with the image, it will function in the same way as a DFC line card. All applications running in virtual switch (VS) view the in-chassis standby as a DFC line card.
What do the two chassis of the VSS need to act as one network element?
For the two chassis of the VSS to act as one network element, they need to share control information and data traffic.
What is a VSS?
A VSS combines a pair of switches into a single network element. For example, a VSS in the distribution layer of the network interacts with the access and core networks as if it were a single switch. See Figure 4-2.
How does EFSu work?
The eFSU sequence consists of several stages, each explicitly initiated by entering a specific issu command in the CLI. At each stage, you can verify the system status or roll back the upgrade before moving to the next stage.
How to prevent accidental configuration of ports as destinations?
To prevent accidental configuration of ports as destinations, you can create a permit list of the ports that are valid for use as destinations. With a destination port permit list configured, you can only configure the ports in the permit list as destinations.
What is a source port?
A source port is a port monitored for traffic analysis. You can configure both switched and routed ports as SPAN source ports. SPAN can monitor one or more source ports in a single SPAN session. You can configure source ports in any VLAN. Trunk ports can be configured as source ports and mixed with nontrunk source ports. SPAN does not copy the encapsulation from a source trunk port.
What is destination port?
A destination port is a Layer 2 or Layer 3 LAN port to which local SPAN, RSPAN, or ERSPAN sends traffic for analysis.
Does PFC2 support RSPAN?
Note • PFC2 does not support RSPAN if you configure an egress SPAN source for a local SPAN session.
Do local spar sessions copy local sourced traffic?
Local SPAN sessions do not copy locally sourced RSPAN VLAN traffic from source trunk ports that carry RSPAN VLANs. Local SPAN sessions do not copy locally sourced RSPAN GRE-encapsulated traffic from source ports.
Does Erspan use separate source and destination sessions?
ERSPAN uses separate source and destination sessions. You configure the source and destination sessions on different switches. These sections describe how to configure ERSPAN sessions:
Can you configure RSPAN destination session?
Note You can configure an RSPAN destination session on the RSPAN source session switch to monitor RSPAN traffic locally.
What is the last element in the command line for the source port?
Port ranges are defined by a dash (“-“) and a sequence of ports are separated by commas (“,”). The last element in the command line for the source port (the port to be monitored) is the specification of whether the switch should replicate packets transmitted from that port, or to that port, or both.
How to display port array on switch?
Select the Smartports option in the CNA menu. This will display a graphic representing the port array of the switch.
What is the source port of a packet sniffer?
The source ports are defined by the first element in this command, which is the “src_mod/src_ports” part. A second port identifier on the command is automatically read as the destination port – that is, the port to which the packet sniffer is attached. The “rx | tx | both” element tells the switch to replicate the packets transmitted from the port, or to the port, or both.
How to monitor VLAN traffic?
If you want to specifically monitor a VLAN, select it from the Ingress VLAN list. If you aren’t aiming to just watch traffic for a VLAN, leave this value at its default. Click on OK to save the settings.
What is source and destination in SPAN?
Here, the “source” is any port, not the origin of traffic.
Does port mirroring store traffic?
These steps will just divert copies of traffic packets to the port that to which you connect your device. The port mirroring setup will not store or analyze the traffic. You can use any network analysis software to process the packets that are sent to your device.
What is Cisco Catalyst 6500?
The Cisco Catalyst 6500 Series Virtual Switching System ( VSS) allows the clustering of two chassis together into a single, logical entity. This technology allows for enhancements in all areas of network design, including high availability, scalability, management, and maintenance.
What is required to use a VSS 6500?
The requirements to convert the 6500 into a Virtual Switching System are: The VSS requires Supervisor Engine 720 with 10-Gigabit Ethernet ports. You must use either two VS-S720-10G-3C or two VS-S720-10G-3CXL supervisor engine modules. The VSS requires 67xx series switching modules. The VSL EtherChannel supports only 10-Gigabit Ethernet ports.
How many Gigabit Ethernet ports does VSL support?
The VSL EtherChannel supports only 10-Gigabit Ethernet ports.
How many VSLs can be used in a switch?
The VSLs can be configured with up to eight links between the two switches across any combination of line cards or supervisor ports to provide a high level of redundancy. If for some rare reason all VSL connections are lost between the virtual switch members leaving each virtual switch assumes the role as the active virtual switch, and each virtual switch controls only its local ports. Duplication of this configuration can possibly have adverse effects to the network topology and traffic.
How many levels are there in a switch interface?
The interface name is converted into three-level interface. The first number (one or two) identify the switch.
What is a copy of the original startup configuration converted to three number notation?
A copy of the original startup configuration converted to three-number no tation is written to the bootflash of the respective switch.
