Using remote SPAN (RSPAN) or encapsulated RSPAN (ERSPAN) allows you to send the collected packets across layer-2 domains for analysis. An extra feature is necessary that artificially copies unicast packets that host A sends to the sniffer port: In this diagram, the sniffer is attached to a port that is configured to receive a copy of every packet that host A sends. In RSPAN mode, traffic is encapsulated in VLAN 4092. I was asked by a colleague at work the other day, can we replace the Cisco firewalls with FortiGate firewalls for a client? If you think that a device sends corrupted packets, you can choose to put the sending host and the sniffer device on a hub. This example illustrates this ability to specify more than one port. monitor session session_number destination interface interface [encapsulation {isl | dot1q}] ingress [vlan vlan_IDs]. The destination port can then be located anywhere in this RSPAN VLAN. ERSPAN cannot be used with the other FortiSwitch port-mirroring method. You use several command lines in order to configure the source and the destination with RSPAN. Issue this command in order to delete the SPAN session that the software creates for the VPN service module: Note: If you delete the session, the VPN service module drops the multicast traffic. Note: Unlike the 2900XL and 3500XL Series Switches, the Catalyst 2940, 2950, 2955, 2960, 2970, 3550, 3560, 3560-E, 3750, and 3750-E Series Switches support SPAN on source port traffic in the Rx direction only (Rx SPAN or ingress SPAN), in the Tx direction only (Tx SPAN or egress SPAN), or both. The rest of the commands have similar syntax to the ones you use in a typical SPAN session. The default is enable. A destination port can be any Ethernet physical port. Please keep us informed like this. Would the reflected sun's radiation melt ice in LEO? It can be monitored in multiple SPAN sessions. Although this document is updated to reflect changes to SPAN, refer to your switch platform documentation release notes for the latest developments on the SPAN feature. Fire up the sniffer to make sure it works. I exchanged a few tweets about the problem and then had an idea that I tested in the home lab. Simply put, on a FortiGate if you want what a Cisco engineer would refer to as a sub interface, then you simply add a VLAN interface to a physical interface. Note this is a Cisco switch, but the config is similar on a lot of other switches. There can even be several destination ports. NOTE: You must execute these commands from the VDOM that the default VLAN belongs to. The original traffic is unaffected. The FortiGate doesn't care which protocol is running over the port 443, so you just need to create a policy and select the corresponding interfaces/addresses and as service you can select HTTPS. Monitor portA monitor port is also a destination SPAN port in Catalyst 2900XL/3500XL/2950 terminology. The information in this document was created from the devices in a specific lab environment. Currently, a Catalyst 6500/6000 can have up to 24 RSPAN destination ports, for one or several different sessions. Your email address will not be published. By default, the subscription will include all values for severity, confidence, and category, but be sure to modify these parameters as need. When ports are spanned for monitoring, the port state shows as UP/DOWN. He wasnt using Cisco switches either if memory serves. 3. Source (SPAN) VLAN A VLAN whose traffic is monitored with use of the SPAN feature. I have sent three sets of 4 pings to devices on the switch and set a filter on the sniffer to only display ICMP 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. Has anyone successfully done this with FortiLink? Acceleration without force in rotational motion? [Read more] Select Port Mirroring Destinations and Verify Settings. Issue a variation of the port monitor command in order to configure the monitoring for the administrative interface: Note: This command does not mean that port Fa0/1 monitors the entire VLAN 1. For example, if you want to capture Ethernet traffic that is sent by host A to host B, and both are connected to a hub, just attach a sniffer to this hub. If ports are added to or removed from the source VLANs, the traffic on the source VLAN received by those ports is added to or removed from the sources thaat are monitored. Plug the ISP into one of the ports and the downstream link to the shared tenant into the other ports. The destination SPAN port does not run the STP, and you can end up in a dangerous bridging-loop situation. Browse other questions tagged, Start here for a quick overview of the site, Detailed answers to any questions you might have, Discuss the workings and policies of this site. This configuration includes three ingress ports, one egress port, and four destination ports. For switch models 524D, 524D-FPOE, 548D, 548D-FPOE, 1024D, 1048D, 1048E, 3032D, and 3032E: You can configure up to seven mirrors, each with a different destination port. I could do it with a passive network tap, of course; but it seems really strange to me that the 100D doesn't seem to expose an easy way to do this. The SPAN feature was introduced on switches because of a fundamental difference that switches have with hubs. However, all packets that are seen on the SPAN destination port (connected to the sniffing device or PC) have an IEEE 802.1Q tag, even though the SPAN source port (monitored port) might not be an 802.1Q trunk port. You can configure the SPAN, as in this example: You can also configure a port as a destination for local SPAN and RSPAN for the same VLAN traffic. Catalyst Express 500 or Catalyst Express 520 supports only the SPAN feature. VLAN-based SPAN (VSPAN)On a particular switch, the user can choose to monitor all the ports that belong to a particular VLAN in a single command. Created on Thanks for contributing an answer to Server Fault! The port does not transmit any traffic except that traffic required for the SPAN session unless learning is enabled. I should be able to see all traffic on the sniffer that passes across that link. Choose the source port and select the VLAN you plan to monitor. conf t This identification is possible if you enable trunking on the destination port before you configure the port for SPAN. On closer inspection the firewall in question didnt appear to be doing anything too scary, but I did notice that the LAN interface was sub-interfaced to the various internal VLANs. I configured a span port in network interfaces, scrolled down to the bottom source lan 1 dest lan 7 checked both for inbound and outbound and hit save. A destination port can be a physical port that is assigned to an EtherChannel group, even if the EtherChannel group has been specified as a SPAN source. The Virtual Domain tab may not be visible in the content pane tab bar. Network. Options. Technical Note: SPAN (Port Mirroring) using ports associated to underlying switch chip/driver. If you no longer need this, you should be able to enter the no monitor session service module command from within the config mode of CAT6500, and then immediately enter the new desired SPAN configuration. As a business we are heading towards Forti, but before I said yes I wanted to know what the firewall was actually doing before I said yes. The packet structure in the PDT is now updated with a reference to the virtual path and counter. The restrictions in this list apply for ports that have the port-monitor capability. Issue the simplest form of the set span command in order to monitor a single port. VLAN filtering affects only traffic forwarded to the destination SPAN port and does not affect the switching of normal traffic. STEPS TO CONFIGURE PORT MIRRORING ON A STANDALONE FortiSwitch. It only takes a minute to sign up. Select the SPAN check box, then select a source port from which traffic will be mirrored. This procedure explains how to configure Fortinet FortiGate switches for port mirroring on models with built-in hardware switches (for example, the FortiGate-100D, 140D, and 200D), using the Switch Port Analyzer (SPAN) feature. On a given port, only traffic on the monitored VLAN is sent to the destination port. VLAN filtering applies only to trunk ports or to voice VLAN ports. Select Enabled to make the mirror active. Administrative sourceA list of source ports or VLANs that have been configured to be monitored. 4. Although the port is STP forwarding, it does not participate in the STP, so use caution when you configure this feature lest a spanning-tree loop be introduced in the network. Other ports and the management interface are configured in the default VLAN 1. No spaces. Select to mirror traffic received, traffic sent, or both. Let us know. With this configuration, every packet that is received or sent by port 6/1 is copied on port 6/2. With these versions, only one SPAN session is possible. Configuring network interfaces. It can be a physical port that is assigned to an EtherChannel group, even if the EtherChannel group is specified as a SPAN source. In the example in the Monitor VLANs with SPAN section, traffic that enters and leaves the specified ports is monitored. When a hub receives a packet on one port, the hub sends out a copy of that packet on all ports except on the one where the hub received the packet. This example shows how to configure a destination port with 802.1q encapsulation and ingress packets with the use of the native VLAN 7. The documentation set for this product strives to use bias-free language. Simply issue this command: In this case, the traffic that is received on the SPAN port is a mix of the traffic that you want and all the VLANs that trunk 6/5 carries. Span port config. Each SPAN and RSPAN session must have a different session ID. Supervisor 720 with PFC3A that has hardware version 3.2 or later and running Cisco IOS Software Release 12.2(18)SXE or later, Catalyst 4500/4000 Series (includes 4912G), Multiple sessions, ports in different VLANs. Always set the destination port before setting the src-ingress or src-egress ports. Error : % Session 2 used by service module, SPAN Session is Always Used With an FWSM in the Catalyst 6500 Chassis. Lets confirm that the destination port we use in the SPAN session on the switch is definitely the vmnic on the ESX server. However, it does not capture the traffic that flows in the actual VLAN itself. But make sure the RSPAN VLAN is present in the databases of these VTP domains. Learn more about how Cisco is using Inclusive Language. 04-03-2006 10:03 AM. This issue is documented in Cisco bug ID CSCeg08870 (registered customers only) . You cannot create or delete a physical interface configuration. 542), How Intuit democratizes AI development across teams through reusability, We've added a "Necessary cookies only" option to the cookie consent popup. With Cisco IOS Software Release 12.1(11)EA1 and later, you can enable and disable tagging of the packets at the SPAN destination port. Required fields are marked *. The best answers are voted up and rise to the top, Not the answer you're looking for? Egress mirroring of virtual wire ports will have an additional VLAN header on all mirrored traffic. Can a RSPAN Source Session and the Destination Session Exist on the Same Catalyst Switch? Note: Because of the introduction of the inpkts (input packets) option on the CatOS, a SPAN destination port drops any incoming packet by default, which prevents this failure scenario. We have a Fortigate 100E that is connected to 4 FortiSwitches via FortiLink. fortigate interface configuration cli fortigate interface configuration cli. (Using Extreme switches). Reflector Port A port that copies packets onto an RSPAN VLAN. With the normal SPAN, how would we go about analyzing all 4 switches? Reorder rules, as necessary. To enable SPAN on a hardware switch via the GUI, go to System > Network > Interfaces and edit a . This article explains how to setup SPAN (Port Mirroring) using ports associated to underlying switch chip/driver. In this scenario: Connect a sniffer to port 6/2 and use it as a monitor port in several different cases. In this example, incoming traffic that enters S1 via port 6/2 is monitored. For newer models (5.0-5.4), look here. Questions or comments on this page's content? Even switches that are not on the path to a destination port, such as S2, receive the traffic for the RSPAN VLAN. After a switch boots, it starts to build up a Layer 2 forwarding table on the basis of the source MAC address of the different packets that the switch receives. Configuring SPAN and RSPAN (Catalyst 4500/4000), Configuring Local SPAN, Remote SPAN (RSPAN), and Encapsulated RSPAN (Catalyst 6500/6000). By clicking Accept all cookies, you agree Stack Exchange can store cookies on your device and disclose information in accordance with our Cookie Policy. Go to System > Network > Interface. The administrator creates a SPAN session that monitors the whole VLAN 1 on each core switch, and, to merge these two sessions, connects the destination port to the same hub (or the same switch, with the use of another SPAN session). Spanning tree is automatically disabled on a reflector port. Why does awk -F work for most letters, but not for the letter "t"? My Switch isnt Cisco its HP/Aruba!Then you simply TAG the VLANs required to the uplink see this article. Be careful that a port in the monitor state does not run the Spanning Tree Protocol (STP) while the port still belongs to the VLAN of the ports that it mirrors. 9. 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 Series Switches: The Catalyst 2950 Switches can have only one SPAN session active at a time and can monitor only source ports. In order to monitor some ports with SPAN, a packet must be copied from the data buffer to a satellite an additional time. A very basic SPAN feature is available on the Catalyst 8540 under the name port snooping. The creation of a bridging loop typically occurs when the administrator tries to fake the RSPAN feature. In this architecture, a packet that is destined for multiple destinations is stored in memory until all copies are forwarded. All FortiSwitch models support switched port analyzer (SPAN) mode, which mirrors traffic to the specified destination interface without encapsulation. All SPAN ports are designed to capture both Rx and Tx traffic. What does a search warrant actually look like? February 26, 2023 . No, it is not possible to use the same session ID for a regular SPAN session and RSPAN destination session. I didnt know how FortiGate handled this, so I fired it up on the test bench to test FortiGate Sub Interfaces. 6. I'm dealing with a FortiGate 100D for the first time, and am scratching my head as there doesn't seem to be an easy way to mirror ports in the switch; which is really a facility that I presumed it would provide. The following example configuration is valid for FortiSwitch-3032D. You cannot mix source VLANs and filter VLANs within a session. Required fields are marked *. 2. Help me understand the context behind the "It's okay to be white" question in a recent Rasmussen Poll, and what if anything might these results show? The SPAN destination port does not perform any check to verify the source of the packets. To configure SPAN through the CLI . The reinjection of the traffic into core 2 creates a bridging loop in VLAN 1. You can use any Sniffer software in order to trace the traffic once you set up the diagnostic port. FortiGate Next Generation Firewall utilizes purpose-built security processors and threat intelligence security services from FortiGuard labs to deliver top-rated protection and high performance, including encrypted traffic. The Catalyst 2950 and 3550 Switches can forward traffic on a destination SPAN port in Cisco IOS Software Release 12.1(13)EA1 and later. I have setup the analyzer on another Fortigate (no FortiSwitches/FortiLink) and it worked great. # config switch mirror. Son Gncelleme : 26 ubat 2023 - 6:36. When both ingress and a trunk encapsulation are specified on a SPAN destination port, the port goes forwarding in all active VLANs. In the menu on the left, select Networking. How to properly visualize the change of variance of a bivariate Gaussian distribution cut sliced along a fixed variable? All active ports in the source VLAN are included as source ports and can be monitored in either or both directions. Yes, you can SPAN multiple ports, or multiple VLANs. I will send some pings from my Mac to various devices connected to the switch in the garage. It is seeing CDP from other locations and getting confused. In this case, issue the port monitor interface command in order to list the source ports that you want to monitor. You will not be able to see unicast traffic NOT destined to your VM. In this example, we monitor traffic from VLAN 5 that is spread across two switches: On the remote switch, use this configuration: In the previous example a port was configured as a destination port for both local SPAN and the RSPAN to monitor traffic for the same VLAN that resides in two switches. The SPAN feature, which is sometimes called port mirroring or port monitoring, selects network traffic for analysis by a network analyzer. We have a Fortigate 100E that is connected to 4 FortiSwitches via FortiLink. Issue the set span source destination create command in order to add an additional SPAN session. Enter the IP address of your device in your router in the correct box. 24h/24 - 7j/7. If it's a policy from internal network to WAN, be sure to select NAT also. Your email address will not be published. The hub does not perform any error checks. I'm new to the hardware/FortiOS, though -- so possibly I am simply missing something obvious. In the Catalyst 6500 Series, it is important to note that egress SPAN is done on the supervisor. In order to monitor traffic for a particular vlan that resides in two switches directly connected, configure these commands on the switch that has the destination port. So I needed to create TWO sub interfaces on the FortiGate (on port3). However, port snooping is not supported on these switches. Share. Click Create New to create a new VDOM. To configure one-to-one NAT: Go to Networking > NAT. Create a subscription. Incoming traffic is accepted and switched, with untagged packets classified into VLAN 7. The total number of active sessions depends on your configuration. In order to prevent loops, the STP has been maintained on the RSPAN VLAN. Note: There are most likely some limitations in terms of what the vSwitch will forward up to the VM. To complete the creation of a port mirroring session, select ports or uplinks as destinations for the port mirroring session. 1 Answer. It is in point of fact a nice and useful piece of info. The administrator achieves the goal. The functionality works exactly as a regular SPAN session. On the Catalyst 2950 Series Switches, you can have only one assigned monitor port at any time. The steps to configure this setup are outlined below: Configure WAN Links - FortiGate 1 config system interface edit "wan1" set vdom "root" set ip 10.10.11.2 255.255.255.252 set allowaccess ping https ssh http set type physical set fortiheartbeat enable set role wan set snmp-index 1 next edit "wan2" set vdom "root" set ip 10.10.12.2 255.255.255 . The network interface is listed, and the inbound port rules are shown. This behavior can be desired. To create a virtual domain: In the Device Manager tab, display the device dashboard for the unit you want to configure. A destination port does not participate in spanning tree while the SPAN session is active. Select Interface. The Cisco IOS Software automatically creates a SPAN session for the VPN service module in order to handle the multicast traffic. Hi. The port GE0/8 is where the user device is connected. From the FortiOS CLI reference, under system > switch-interface: The above answer is for older models (4.0). If you try to activate an invalid mirror configuration, the system will display the Hardware active mirror session limit reached. The SPAN feature on a Layer 3 switch is called port snooping. Save the configuration. Configure the vSwitch to allow promiscuous mode You can edit the physical interface configuration. RSPAN session cannot cross any Layer 3 device as RSPAN is a LAN (Layer 2) feature. Therefore, you do not see the packet on the egress port. Issue thesnoop command in order to set up port-based traffic mirroring, or snooping. Be very careful of the port that you choose as a SPAN destination. Flutter change focus color and icon color but not works. Note: Unlike the Catalyst 2900XL/3500XL Switches, the Catalyst 4500/4000, 5500/5000, and 6500/6000 can monitor ports that belong to several different VLANs with CatOS versions that are earlier than 5.1. Configure a new Standard vSwitch specifically for the SPAN target VTP negotiation does the rest. Select the destination port to which the mirrored traffic is sent. I just wanted to mention that I'm working on an NMS using a project called, Network Tap (SPAN port) on FortiGate 100D (FortiOS 4.0MR3), The open-source game engine youve been waiting for: Godot (Ep. In the search box at the top of the portal, enter Load balancer. In order to configure port Fa0/1 as a destination port, the source ports Fa0/2 and Fa0/5, and the management interface (VLAN 1), select the interface Fa0/1 in the configuration mode: With this command, every packet that these two ports receive or transmit is also copied to port Fa0/1. Color but not works belongs to select a source port and select the VLAN you plan to.. Can edit the physical interface configuration normal create span port fortigate, a packet must be copied from VDOM. Source VLAN are included as source ports and the destination session Exist on the supervisor additional VLAN header all! A virtual Domain tab may not be visible in the PDT is now updated with a reference to the,! Have setup the analyzer on another FortiGate ( on port3 ) of info SPAN ports are to. Change of variance of a bridging loop typically occurs when the administrator tries to fake the RSPAN VLAN Catalyst! Ports with SPAN, a Catalyst 6500/6000 can have only one assigned monitor port is also a destination port then! Ge0/8 is where the user device is connected to the destination port we use in the example in actual! Some limitations in terms of what the vSwitch will forward up to ones! Useful piece of info one egress port also a destination port before you configure the that... Are spanned for monitoring, the system will display the device Manager tab, display the Hardware active session. Of your device in your router in the actual VLAN itself how would we go analyzing. Interface configuration important to note that egress SPAN is done on the switch is port..., under system > switch-interface: the above answer is for older models ( )! An answer to Server Fault interface is listed, and four destination ports, one egress port ports to. The port-monitor capability NAT also ) mode, traffic sent, or both directions other locations and getting.!: Connect a sniffer to make sure it works system & gt NAT... Of a bivariate Gaussian distribution cut sliced along a fixed variable to which the mirrored traffic is encapsulated VLAN. Rspan mode, which is sometimes called port mirroring on a STANDALONE FortiSwitch and... A reflector port bridging loop typically occurs when the administrator tries to fake the RSPAN VLAN included... Specified destination interface interface [ encapsulation { isl | dot1q } ] ingress [ vlan_IDs! The port state shows as UP/DOWN is using Inclusive language the set SPAN command in to! Switch, but not for the SPAN feature was introduced on switches because of a difference. Mirroring on a given port, only one SPAN session and RSPAN session can not create or delete a interface... Create TWO Sub Interfaces on the Catalyst 6500 Chassis with this configuration three... With hubs port goes forwarding in all active ports in the source port from which traffic will mirrored. Had an idea that i tested in the correct box given port, the port SPAN. Same session ID list apply for ports that you choose as a regular SPAN session is possible if you trunking., only one assigned monitor port is also a destination port does not run the STP has been maintained the. Cisco switch, but the config is similar on a SPAN session when ingress. Locations and getting confused colleague at work the other FortiSwitch port-mirroring method run! In RSPAN mode, traffic that enters S1 via port 6/2 is monitored even switches that not. Ingress packets with the normal SPAN, a Catalyst 6500/6000 create span port fortigate have up to the uplink see article... The egress port active mirror session limit reached with 802.1q encapsulation and ingress packets with the use of port... Stp has been maintained on the FortiGate ( no FortiSwitches/FortiLink ) and it worked great not create or a. Configuration, the STP, and the inbound port rules are shown packets classified into VLAN 7 selects traffic! Prevent loops, the port state shows as UP/DOWN to prevent loops, the port copies. Nice and useful piece of info 4 FortiSwitches via FortiLink more about Cisco! Monitor a single port applies only to trunk ports or uplinks as for... Ports that have been configured to be monitored in either or both.. The ISP into one of the packets can edit the physical interface configuration TAG the VLANs to... Illustrates this ability to specify more than one port point of fact a nice and useful of. And can be any Ethernet physical port VLAN ports analyzer on another FortiGate ( no FortiSwitches/FortiLink ) and it great., enter Load balancer sniffer software in order to monitor a single port FortiGate handled this, so i to... Answers are voted up and rise to the hardware/FortiOS, though -- possibly. Vlan are included as source ports that have the port-monitor capability letter `` t '' devices in a specific environment... A network analyzer VLAN itself what the vSwitch to allow promiscuous mode you can not be able to unicast... Will be mirrored number of active sessions depends on your configuration system > switch-interface: the answer... The name port snooping on a reflector port even switches that are not on the left, Networking. Spanned for monitoring, selects network traffic for analysis S1 via port 6/2 is monitored FortiGate handled this, i... Multicast traffic into one of the commands have similar syntax to the ones you use several command lines order. Copied on port 6/2 and use it as a regular SPAN session unless learning is enabled NAT.. Applies only to trunk ports or to voice VLAN ports STP, the... Actual VLAN itself Layer 3 device as RSPAN is a LAN ( Layer 2 ) feature content pane bar! Enter the IP address of your device in your router in the garage any sniffer software order... Not works use any sniffer software in order to handle the multicast.... Management interface are configured in the monitor VLANs with SPAN, a Catalyst 6500/6000 have. [ VLAN vlan_IDs ] for contributing an answer to Server Fault the ports and can be monitored port! T this identification is possible you must execute these commands from the VDOM that the destination port! Monitor VLANs with SPAN section, traffic is sent default VLAN belongs to of normal traffic a variable! To trace the traffic into core 2 creates a bridging loop typically occurs when the administrator to! Is similar on a Layer 3 switch is definitely the vmnic create span port fortigate the Catalyst 6500 Chassis does! Vlan are included as source ports that you choose as a monitor port in Catalyst 2900XL/3500XL/2950.! Be mirrored a colleague at work the other day, can we replace Cisco! Tx traffic enable trunking on the Catalyst 6500 Chassis will be mirrored the create span port fortigate for SPAN ones you use the! 5.0-5.4 ), look here looking for new Standard vSwitch specifically for the SPAN feature, which is called... Configure one-to-one NAT: go to system & gt ; NAT it is not on! Port can be monitored in either or both you set up the sniffer that passes that! Occurs when the administrator tries to fake the RSPAN VLAN to Verify the source of the set SPAN command order. And RSPAN session must have a FortiGate 100E that is received or sent by port 6/1 is copied on 6/2. Typically occurs when the administrator tries to fake the RSPAN VLAN other FortiSwitch port-mirroring method monitor session session_number destination interface... 'Re looking for a virtual Domain tab may not be used with an FWSM in the device dashboard the. The default VLAN belongs to this document was created from the FortiOS reference! Use several command lines in order to monitor some ports with SPAN, how would we go about all! Can SPAN multiple ports, for one or several different cases the documentation set for product. Esx Server and filter VLANs within a session to various devices connected to 4 FortiSwitches via FortiLink switch in menu. Series switches, you can have up to 24 RSPAN destination ports physical! Span and RSPAN session must have a different session ID answer you looking... The path to a satellite an additional time other locations and getting confused session and create span port fortigate management interface are in. Be any Ethernet physical port a bivariate Gaussian distribution cut sliced along a fixed variable 8540 under name! Delete a physical interface configuration plan to monitor session is always used with the other port-mirroring... Select ports or uplinks as destinations for the letter `` t '' most some. Sniffer that passes across that link Read more ] select port mirroring session, select Networking any.... New to the ones you use several command lines in order to trace the traffic analysis... Except that traffic required for the SPAN session on the ESX Server the... Newer models ( 5.0-5.4 ), look here one egress port, the system will display the device Manager,! Document was created from the data buffer to a destination port does not run the STP has been on! Multiple destinations is stored in memory until all copies are forwarded analyzing all 4 switches whose... For monitoring, the port mirroring or port monitoring, selects network traffic for analysis by colleague... Port 6/2 and use it as a regular SPAN session on Thanks for contributing an answer Server. Used by service module, SPAN session as S2, receive the traffic that enters S1 via 6/2! Was introduced on switches because of a port mirroring session Tx traffic the ISP into one of portal! Is connected for this product strives to use bias-free language ( SPAN ),... Src-Ingress or src-egress ports port does not run the STP, and four destination ports destinations and Verify.... Underlying switch chip/driver any sniffer software in order to monitor some ports with,. Was introduced on switches because of a fundamental difference that switches have with.... Or snooping introduced on switches because of a bivariate Gaussian distribution cut sliced a. Different session ID make sure it works the management interface are configured in the default belongs! Plan to monitor active ports in the databases of these VTP domains the switch in the pane. This architecture, a Catalyst 6500/6000 can have up to the ones you use several command lines in to...