Understanding Interface Types:
This section describes the different types of reference contains more detailed information about the configuration of these interface types section and interfaces supported by the exchanger. The remainder of this chapter describes the switch port configuration program.
Layer 2 interfaces only physical ports associated switch port. The physical interface they use to manage and the associated layer 2 Protocol does not deal with routing or bridging. A switch port can access the port or trunk port.
You can configure access port port or trunk ports or dynamic Trunking Protocol (DTP) on the basis of each port determines whether the switch port access port or trunk port should be negotiated on the link on the other end of the port.
By using a switch port interface configuration command to configure the switch ports. For more information on configure access port and trunk port properties, see "Configuring Vlan".
Note that physical switch ports can be ten-one hundredths Ethernet port, Ethernet port, 100BASE-FX port 10/100/1000 year, 1000BASE SX ports, long reach Ethernet (liquid-propellant rocket engines) port, the module port Gigabit interface converter (GBIC) and small pluggable (SFP)-module area. For more information, see switch hardware installation guide.
Access Ports:
Only one VLAN access port belongs and carrying traffic (unless it is configured as a voice VLAN ports). Traffic is received and sent native format with no VLAN tags. Traffic reaches the access ports are presumed to belong to the VLAN assigned to the port. Receive 802.1 p-if the access port or VLAN 802.1 q-is assigned to the port marked data and forwarding the datagram. If the port receives another VLAN 802.1 p or 802.1 q-mark datagram, the datagram is discarded, the source address is not learned a lesson, counted on for no apparent reason and frame statistics.
2,950 catalyst or catalyst 2955 switches do not support ISL tagged datagrams. If the switch receives a datagram marked ISL, is the date of receipt of the data is reported to have been flooded in because MAC ISL tag in the datagram's destination address is a multicast address in the native VLAN of the port.
Supports two types of access ports:
In the Static access port manually assigned to a VLAN.
The dynamic access port VLAN membership is an incoming datagram by understanding. By default, dynamic access port is the port VLAN is not VLAN members and members when they were found only enabled forwarding to and from port. Dynamic access switch ports are assigned VLAN VLAN membership policy server (VMPS). VMPS can be the catalyst for 6,000 series switch; 2,950 catalyst or catalyst 2955 switch VMPS function is not supported.
You can also configure access port with a Cisco IP phone voice communications connected to another VLAN from the VLAN and equipment connected to the phone's data flow. For more information on voice VLAN ports, see "Configuring Vlan".
Trunk Ports:
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Trunk port by multiple Vlan traffic is on by default in all members of the Vlan in the VLAN database. Relay port supports only IEEE 802.1 q. IEEE 802.1 q trunk port supports both added volume label does not impose labelling and transportation. 802.1 Q trunk ports are assigned a default port VLAN ID (PVID) and does not label all communication ports to the default PVID of NZ. Assuming that all traffic and does not label to Null VLAN ID tag belongs to the default traffic ports PVID. A is equal to the default PVID send port VLAN ID to send datagrams without a label. All other communications are sent to the same VLAN tags.
By default, the VTP VLAN trunk ports are known members of the list that you can configure to allow limit each Vlan of the trunk port VLAN membership. Allowed Vlan list is without prejudice to any other port, trunk ports that are associated. By default, all the possible Vlan (VLAN ID from 1 to 1005 standard software images [SI] install at installation time or VLAN ID 1 per cent enhanced software image [EI]) are allowed in the list. Trunk ports can only be members of VLAN, if the VLAN and VTP idea VLAN is enabled. If VTP can learn a new, virtual LANs and VLAN are enabled in the allowed list of trunk ports, trunk ports will automatically become members and forwards traffic to that VLAN, and the VLAN from the trunk port. If VTP can learn is not in the allowed list of trunk ports, VLAN enabled new, BU would not become members of the VLAN does not forward traffic to or from the ports of the VLAN.
For more information on relay port, see the "Configuring Vlan".
EtherChannel Port Groups:
Port groups provide the ability to handle multiple Ethernet channel switch port as a switch port. These ports as a single logical port set of high bandwidth connectivity between switches or between a switch and a server. Ethernet channel between the links in a channel the traffic load balancing. If the link fails in the roads, traffic previously carried over the failed link changes to the rest of the links. You can group by doing the following relay ports into a single logical trunk port, or a set of multiple access ports into one logical access port. Most protocols on a single port or an aggregate switch port operations, but does not identify the physical port in the port group. Exceptions are DTP, Cisco Discovery Protocol (CDP), Port Aggregation Protocol (PAgP) and link aggregation Control Protocol (LACP) operation can be performed only on a physical port.
Ethernet channel configuration, you create a logical interface port-channel, and interfaces assigned to the trunk. Interface logic interface is dynamically created on the second floor. Channel groups manually using the interface configuration commands assign interface trunk road. This physical and logical port bound together. For more information, see "Configuring EtherChannels."
Connecting Interfaces:
Within a single VLAN device can communicate directly through any exchanger. Exchanging data in different ports in the Vlan cannot, and will not be routed through the routing device, or interface.
With standard second-layer exchanger, different port must be in the Vlan through routers exchange information. In the configuration shown in Figure 11-1 in VLAN 20 when host a sends data to a host in VLAN 30 b, it must be from the host to the switch to the router, on a back to exchanger and then to host b.
Using the Interface Command:
To configure physical interfaces (ports), please use the interface global configuration command to enter interface configuration mode and specify the interface type, and number of slots.
Ø – fast Ethernet (FastEthernet, or FA) for the ten-one hundredths Ethernet, Gigabit Ethernet (gigabitethernet, or GI) or liquid rocket engine (longreachethernet or Lo)
Slot--switch (this Exchange is always 0 on) on the slot number.
Port count-the number of interfaces on the switch. Starting from port number is always 1, beginning from the left on the switch facing front, for example, FastEthernet, and FastEthernet zero-first. If you have multiple media types (for example, ten-one hundredths port and Gigabit Ethernet port), port number you start with the second press: gigabitethernet 0/1,gigabitethernet zero-second.
You can physically check the interface identifies the physical interface on the switch. You can also use the Cisco IOS show privileged EXEC command to display information about a specific interface or all interfaces on the Exchange. The remainder of this chapter provides the physical interface configuration process.
This section describes how to configure interfaces and how to configure interfaces of all types range:
Procedures used to configure interface
Configuring interfaces ranges
Configuring and using an interface range macro
Procedures for configuring interfaces
These general instructions apply to all interface configuration process.
This section describes the different types of reference contains more detailed information about the configuration of these interface types section and interfaces supported by the exchanger. The remainder of this chapter describes the switch port configuration program.
Layer 2 interfaces only physical ports associated switch port. The physical interface they use to manage and the associated layer 2 Protocol does not deal with routing or bridging. A switch port can access the port or trunk port.
You can configure access port port or trunk ports or dynamic Trunking Protocol (DTP) on the basis of each port determines whether the switch port access port or trunk port should be negotiated on the link on the other end of the port.
By using a switch port interface configuration command to configure the switch ports. For more information on configure access port and trunk port properties, see "Configuring Vlan".
Note that physical switch ports can be ten-one hundredths Ethernet port, Ethernet port, 100BASE-FX port 10/100/1000 year, 1000BASE SX ports, long reach Ethernet (liquid-propellant rocket engines) port, the module port Gigabit interface converter (GBIC) and small pluggable (SFP)-module area. For more information, see switch hardware installation guide.
Access Ports:
Only one VLAN access port belongs and carrying traffic (unless it is configured as a voice VLAN ports). Traffic is received and sent native format with no VLAN tags. Traffic reaches the access ports are presumed to belong to the VLAN assigned to the port. Receive 802.1 p-if the access port or VLAN 802.1 q-is assigned to the port marked data and forwarding the datagram. If the port receives another VLAN 802.1 p or 802.1 q-mark datagram, the datagram is discarded, the source address is not learned a lesson, counted on for no apparent reason and frame statistics.
2,950 catalyst or catalyst 2955 switches do not support ISL tagged datagrams. If the switch receives a datagram marked ISL, is the date of receipt of the data is reported to have been flooded in because MAC ISL tag in the datagram's destination address is a multicast address in the native VLAN of the port.
Supports two types of access ports:
In the Static access port manually assigned to a VLAN.
The dynamic access port VLAN membership is an incoming datagram by understanding. By default, dynamic access port is the port VLAN is not VLAN members and members when they were found only enabled forwarding to and from port. Dynamic access switch ports are assigned VLAN VLAN membership policy server (VMPS). VMPS can be the catalyst for 6,000 series switch; 2,950 catalyst or catalyst 2955 switch VMPS function is not supported.
You can also configure access port with a Cisco IP phone voice communications connected to another VLAN from the VLAN and equipment connected to the phone's data flow. For more information on voice VLAN ports, see "Configuring Vlan".
Trunk Ports:
Trunk port by multiple Vlan traffic is on by default in all members of the Vlan in the VLAN database. Relay port supports only IEEE 802.1 q. IEEE 802.1 q trunk port supports both added volume label does not impose labelling and transportation. 802.1 Q trunk ports are assigned a default port VLAN ID (PVID) and does not label all communication ports to the default PVID of NZ. Assuming that all traffic and does not label to Null VLAN ID tag belongs to the default traffic ports PVID. A is equal to the default PVID send port VLAN ID to send datagrams without a label. All other communications are sent to the same VLAN tags.
By default, the VTP VLAN trunk ports are known members of the list that you can configure to allow limit each Vlan of the trunk port VLAN membership. Allowed Vlan list is without prejudice to any other port, trunk ports that are associated. By default, all the possible Vlan (VLAN ID from 1 to 1005 standard software images [SI] install at installation time or VLAN ID 1 per cent enhanced software image [EI]) are allowed in the list. Trunk ports can only be members of VLAN, if the VLAN and VTP idea VLAN is enabled. If VTP can learn a new, virtual LANs and VLAN are enabled in the allowed list of trunk ports, trunk ports will automatically become members and forwards traffic to that VLAN, and the VLAN from the trunk port. If VTP can learn is not in the allowed list of trunk ports, VLAN enabled new, BU would not become members of the VLAN does not forward traffic to or from the ports of the VLAN.
For more information on relay port, see the "Configuring Vlan".
EtherChannel Port Groups:
Port groups provide the ability to handle multiple Ethernet channel switch port as a switch port. These ports as a single logical port set of high bandwidth connectivity between switches or between a switch and a server. Ethernet channel between the links in a channel the traffic load balancing. If the link fails in the roads, traffic previously carried over the failed link changes to the rest of the links. You can group by doing the following relay ports into a single logical trunk port, or a set of multiple access ports into one logical access port. Most protocols on a single port or an aggregate switch port operations, but does not identify the physical port in the port group. Exceptions are DTP, Cisco Discovery Protocol (CDP), Port Aggregation Protocol (PAgP) and link aggregation Control Protocol (LACP) operation can be performed only on a physical port.
Ethernet channel configuration, you create a logical interface port-channel, and interfaces assigned to the trunk. Interface logic interface is dynamically created on the second floor. Channel groups manually using the interface configuration commands assign interface trunk road. This physical and logical port bound together. For more information, see "Configuring EtherChannels."
Connecting Interfaces:
Within a single VLAN device can communicate directly through any exchanger. Exchanging data in different ports in the Vlan cannot, and will not be routed through the routing device, or interface.
With standard second-layer exchanger, different port must be in the Vlan through routers exchange information. In the configuration shown in Figure 11-1 in VLAN 20 when host a sends data to a host in VLAN 30 b, it must be from the host to the switch to the router, on a back to exchanger and then to host b.
Using the Interface Command:
To configure physical interfaces (ports), please use the interface global configuration command to enter interface configuration mode and specify the interface type, and number of slots.
Ø – fast Ethernet (FastEthernet, or FA) for the ten-one hundredths Ethernet, Gigabit Ethernet (gigabitethernet, or GI) or liquid rocket engine (longreachethernet or Lo)
Slot--switch (this Exchange is always 0 on) on the slot number.
Port count-the number of interfaces on the switch. Starting from port number is always 1, beginning from the left on the switch facing front, for example, FastEthernet, and FastEthernet zero-first. If you have multiple media types (for example, ten-one hundredths port and Gigabit Ethernet port), port number you start with the second press: gigabitethernet 0/1,gigabitethernet zero-second.
You can physically check the interface identifies the physical interface on the switch. You can also use the Cisco IOS show privileged EXEC command to display information about a specific interface or all interfaces on the Exchange. The remainder of this chapter provides the physical interface configuration process.
This section describes how to configure interfaces and how to configure interfaces of all types range:
Procedures used to configure interface
Configuring interfaces ranges
Configuring and using an interface range macro
Procedures for configuring interfaces
These general instructions apply to all interface configuration process.
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