|
page OPENNSL_MPLS_OVERVIEW
MPLS management MPLS support
can be broken down into two
Layer and Layer MPLS L2 MPLS
consists of point to point
Virtual Private Wire Ethernet
frames are mapped into a MPLS
pseudowire based on incoming
port plus packet header
information At the end of a
forwarding of Ethernet frames
after MPLS decapsulation is
based on the MPLS label lookup
In Ethernet frames of interest
are also identified by
incoming port plus packet
header information Ethernet
frames are switched into one
or more MPLS pseudowires based
on the MAC DA lookup At the
end of a frames again are
switched based on MAC DA
lookup L3 MPLS deals with the
establishment of MPLS tunnels
At the MPLS tunnel initiation
packets entering the tunnel
are encapsulated with an MPLS
MPLS label and POP operations
are supported At the end of an
MPLS forwarding of IPv4 and
IPv6 packets is based on DIP
lookup Virtual routing tables
are supported for the DIP
lookup In the MPLS the concept
of VPN is introduced A VPN can
be of type or a VPN is similar
to a which identifies a group
of physical ports to be
included in a broadcast domain
instead of physical a VPLS VPN
identifies a group of virtual
ports to be included in a
broadcast domain In the MPLS a
virtual port is called an MPLS
a VPN consists of two MPLS
ports Packets arriving on one
MPLS port are sent directly
out the other MPLS port L3
VPNs are used to identify
virtual a routing table When
creating an L3 a VRF must be
specified At the end of a MPLS
the IPv4 or IPv6 DIP lookup is
qualified by VRF associated
with the L3 VPN page
OPENNSL_STACK_MANAGEMENT_OVERVIEW
Multi device Stack Control
APIs Network switches can act
in a stand alone manner or be
part of a larger distributed
switching system Such systems
may be simply a small number
of switching devices within a
single box or a larger number
of switching devices across
multiple stacked boxes or in a
chassis In each of these each
switch device must be
programmed with its address in
the larger Gigabit | Ethernet (GbE) or Ten Gigabit Ethernet(XE) ports) and one or more HiGig ports.\li Some devices may have gigabit ports that are capable of being put into a stack mode where each packet sent or received with an extra stack tag that provides stack wide addressing information.This type of stack port is called an SL stack port or front-panel stack port.SL stack ports can be run in either simplex or duplex mode.Simplex stack ports transmit to one remote device and receives from another.Full connectivity in the stack requires that all stack ports in the system form a non-redundant ring.Simplex stack rings require that the count of systems in the ring be programmed into each stack port.A ring of systems can be const ructed with only a single stack port on each system |
| |
page OPENNSL_MPLS_OVERVIEW
MPLS management MPLS support
can be broken down into two
Layer and Layer MPLS L2 MPLS
consists of point to point
Virtual Private Wire Ethernet
frames are mapped into a MPLS
pseudowire based on incoming
port plus packet header
information At the end of a
forwarding of Ethernet frames
after MPLS decapsulation is
based on the MPLS label lookup
In Ethernet frames of interest
are also identified by
incoming port plus packet
header information Ethernet
frames are switched into one
or more MPLS pseudowires based
on the MAC DA lookup At the
end of a frames again are
switched based on MAC DA
lookup L3 MPLS deals with the
establishment of MPLS tunnels
At the MPLS tunnel initiation
packets entering the tunnel
are encapsulated with an MPLS | header (label PUSH operation).IPv4 and IPv6 packets can be directed into an MPLS tunnel based on the DIP lookup.Along the path of the MPLS tunnel |
| |
page OPENNSL_MPLS_OVERVIEW
MPLS management MPLS support
can be broken down into two
Layer and Layer MPLS L2 MPLS
consists of point to point
Virtual Private Wire Ethernet
frames are mapped into a MPLS
pseudowire based on incoming
port plus packet header
information At the end of a
forwarding of Ethernet frames
after MPLS decapsulation is
based on the MPLS label lookup
In Ethernet frames of interest
are also identified by
incoming port plus packet
header information Ethernet
frames are switched into one
or more MPLS pseudowires based
on the MAC DA lookup At the
end of a frames again are
switched based on MAC DA
lookup L3 MPLS deals with the
establishment of MPLS tunnels
At the MPLS tunnel initiation
packets entering the tunnel
are encapsulated with an MPLS
MPLS label and POP operations
are supported At the end of an
MPLS forwarding of IPv4 and
IPv6 packets is based on DIP
lookup Virtual routing tables
are supported for the DIP
lookup In the MPLS the concept
of VPN is introduced A VPN can
be of type or a VPN is similar
to a which identifies a group
of physical ports to be
included in a broadcast domain
instead of physical a VPLS VPN
identifies a group of virtual
ports to be included in a
broadcast domain In the MPLS a
virtual port is called an MPLS | port (see description below).The VPN ID is used to qualify MAC DA lookups in VPLS.For VPWS |
| |
page OPENNSL_MPLS_OVERVIEW
MPLS management MPLS support
can be broken down into two
Layer and Layer MPLS L2 MPLS
consists of point to point
Virtual Private Wire | Service (VPWS) and point-to-multipoint Virtual Private LAN Service(VPLS) Ethernet transport services.In VPWS |
| |
page OPENNSL_MPLS_OVERVIEW
MPLS management MPLS support
can be broken down into two
Layer and Layer MPLS L2 MPLS
consists of point to point
Virtual Private Wire Ethernet
frames are mapped into a MPLS
pseudowire based on incoming
port plus packet header
information At the end of a
forwarding of Ethernet frames
after MPLS decapsulation is
based on the MPLS label lookup
In Ethernet frames of interest
are also identified by
incoming port plus packet
header information Ethernet
frames are switched into one
or more MPLS pseudowires based
on the MAC DA lookup At the
end of a frames again are
switched based on MAC DA
lookup L3 MPLS deals with the
establishment of MPLS tunnels
At the MPLS tunnel initiation
packets entering the tunnel
are encapsulated with an MPLS
MPLS label and POP operations
are supported At the end of an
MPLS forwarding of IPv4 and
IPv6 packets is based on DIP
lookup Virtual routing tables
are supported for the DIP
lookup In the MPLS the concept
of VPN is introduced A VPN can
be of type or a VPN is similar
to a which identifies a group
of physical ports to be
included in a broadcast domain
instead of physical a VPLS VPN
identifies a group of virtual
ports to be included in a
broadcast domain In the MPLS a
virtual port is called an MPLS
a VPN consists of two MPLS
ports Packets arriving on one
MPLS port are sent directly
out the other MPLS port L3
VPNs are used to identify
virtual a routing table When
creating an L3 a VRF must be
specified At the end of a MPLS
the IPv4 or IPv6 DIP lookup is
qualified by VRF associated
with the L3 VPN page
OPENNSL_STACK_MANAGEMENT_OVERVIEW
Multi device Stack Control
APIs Network switches can act
in a stand alone manner or be
part of a larger distributed
switching system Such systems
may be simply a small number
of switching devices within a
single box or a larger number
of switching devices across
multiple stacked boxes or in a
chassis In each of these each
switch device must be
programmed with its address in
the larger | system (called a module identifier or module ID) and have some means of directing traffic to other devices in the system.This topology information may be statically defined or dynamically determined by using stacking software.These defined API routines are the building blocks to set the system wide addressing and topology information.Some fabric switches provide a mechanism called module mapping that allows up to 128 module identifiers to be used in a system.There are two general types of stack ports that are supported.\li HiGig ports are dedicated 10 gigabit/second stack ports.These ports are found on most switch devices.There are dedicated fabric switches that consist only of HiGig ports as well as network switches that contain one or more front-panel ports(which can be Fast Ethernet(FE) |
| |
|
page OPENNSL_MPLS_OVERVIEW
MPLS management MPLS support
can be broken down into two
Layer and Layer MPLS L2 MPLS
consists of point to point
Virtual Private Wire Ethernet
frames are mapped into a MPLS
pseudowire based on incoming
port plus packet header
information At the end of a
forwarding of Ethernet frames
after MPLS decapsulation is
based on the MPLS label lookup
In Ethernet frames of interest
are also identified by
incoming port plus packet
header information Ethernet
frames are switched into one
or more MPLS pseudowires based
on the MAC DA lookup At the
end of a frames again are
switched based on MAC DA
lookup L3 MPLS deals with the
establishment of MPLS tunnels
At the MPLS tunnel initiation
packets entering the tunnel
are encapsulated with an MPLS
MPLS label and POP operations
are supported At the end of an
MPLS forwarding of IPv4 and
IPv6 packets is based on DIP
lookup Virtual routing tables
are supported for the DIP
lookup In the MPLS | APIs |
| |
page OPENNSL_MPLS_OVERVIEW
MPLS management MPLS support
can be broken down into two
Layer and Layer MPLS L2 MPLS
consists of point to point
Virtual Private Wire Ethernet
frames are mapped into a MPLS
pseudowire based on incoming
port plus packet header
information At the end of a
forwarding of Ethernet frames
after MPLS decapsulation is
based on the MPLS label lookup
In Ethernet frames of interest
are also identified by
incoming port plus packet
header information Ethernet
frames are switched into one
or more MPLS pseudowires based
on the MAC DA lookup At the
end of a frames again are
switched based on MAC DA
lookup L3 MPLS deals with the
establishment of MPLS tunnels
At the MPLS tunnel initiation
packets entering the tunnel
are encapsulated with an MPLS
MPLS label and POP operations
are supported At the end of an
MPLS forwarding of IPv4 and
IPv6 packets is based on DIP
lookup Virtual routing tables
are supported for the DIP
lookup In the MPLS the concept
of VPN is introduced A VPN can
be of type or a VPN is similar
to a which identifies a group
of physical ports to be
included in a broadcast domain
instead of physical a VPLS VPN
identifies a group of virtual
ports to be included in a
broadcast domain In the MPLS a
virtual port is called an MPLS
a VPN consists of two MPLS
ports Packets arriving on one
MPLS port are sent directly
out the other MPLS port L3
VPNs are used to identify
virtual a routing table When
creating an L3 a VRF must be
specified At the end of a MPLS
the IPv4 or IPv6 DIP lookup is
qualified by VRF associated
with the L3 VPN page
OPENNSL_STACK_MANAGEMENT_OVERVIEW
Multi device Stack Control
APIs Network switches can act
in a stand alone manner or be
part of a larger distributed
switching system Such systems
may be simply a small number
of switching devices within a
single box or a larger number
of switching devices across
multiple stacked boxes or in a
chassis In each of these | cases |
| |
page OPENNSL_MPLS_OVERVIEW
MPLS management MPLS support
can be broken down into two | categories |
| |
page OPENNSL_MPLS_OVERVIEW
MPLS management MPLS support
can be broken down into two
Layer and Layer MPLS L2 MPLS
consists of point to point
Virtual Private Wire Ethernet
frames are mapped into a MPLS
pseudowire based on incoming
port plus packet header
information At the end of a
forwarding of Ethernet frames
after MPLS decapsulation is
based on the MPLS label lookup
In Ethernet frames of interest
are also identified by
incoming port plus packet
header information Ethernet
frames are switched into one
or more MPLS pseudowires based
on the MAC DA lookup At the
end of a frames again are
switched based on MAC DA
lookup L3 MPLS deals with the
establishment of MPLS tunnels
At the MPLS tunnel initiation
packets entering the tunnel
are encapsulated with an MPLS
MPLS label and POP operations
are supported At the end of an
MPLS forwarding of IPv4 and
IPv6 packets is based on DIP
lookup Virtual routing tables
are supported for the DIP
lookup In the MPLS the concept
of VPN is introduced A VPN can
be of type or a VPN is similar
to a which identifies a group
of physical ports to be
included in a broadcast domain | However |
| |
page OPENNSL_MPLS_OVERVIEW
MPLS management MPLS support
can be broken down into two
Layer and Layer MPLS L2 MPLS
consists of point to point
Virtual Private Wire Ethernet
frames are mapped into a MPLS
pseudowire based on incoming
port plus packet header
information At the end of a
forwarding of Ethernet frames
after MPLS decapsulation is
based on the MPLS label lookup
In Ethernet frames of interest
are also identified by
incoming port plus packet
header information Ethernet
frames are switched into one
or more MPLS pseudowires based
on the MAC DA lookup At the
end of a frames again are
switched based on MAC DA
lookup L3 MPLS deals with the
establishment of MPLS tunnels
At the MPLS tunnel initiation
packets entering the tunnel
are encapsulated with an MPLS
MPLS label and POP operations
are supported At the end of an
MPLS forwarding of IPv4 and
IPv6 packets is based on DIP
lookup Virtual routing tables
are supported for the DIP
lookup In the MPLS the concept
of VPN is introduced A VPN can
be of type or | L3 |
| |
page OPENNSL_MPLS_OVERVIEW
MPLS management MPLS support
can be broken down into two
Layer and Layer MPLS L2 MPLS
consists of point to point
Virtual Private Wire Ethernet
frames are mapped into a MPLS
pseudowire based on incoming
port plus packet header
information At the end of a
forwarding of Ethernet frames
after MPLS decapsulation is
based on the MPLS label lookup
In Ethernet frames of interest
are also identified by
incoming port plus packet
header information Ethernet
frames are switched into one
or more MPLS pseudowires based
on the MAC DA lookup At the
end of a frames again are
switched based on MAC DA
lookup L3 MPLS deals with the
establishment of MPLS tunnels
At the MPLS tunnel initiation
packets entering the tunnel
are encapsulated with an MPLS
MPLS label | PHP |
| |
page OPENNSL_MPLS_OVERVIEW
MPLS management MPLS support
can be broken down into two
Layer and Layer MPLS L2 MPLS
consists of point to point
Virtual Private Wire Ethernet
frames are mapped into a MPLS
pseudowire based on incoming
port plus packet header
information At the end of a
forwarding of Ethernet frames
after MPLS decapsulation is
based on the MPLS label lookup
In Ethernet frames of interest
are also identified by
incoming port plus packet
header information Ethernet
frames are switched into one
or more MPLS pseudowires based
on the MAC DA lookup At the
end of a frames again are
switched based on MAC DA
lookup L3 MPLS deals with the
establishment of MPLS tunnels
At the MPLS tunnel initiation | point |
| |
page OPENNSL_MPLS_OVERVIEW
MPLS management MPLS support
can be broken down into two
Layer and Layer MPLS L2 MPLS
consists of point to point
Virtual Private Wire Ethernet
frames are mapped into a MPLS
pseudowire based on incoming
port plus packet header
information At the end of a
forwarding of Ethernet frames
after MPLS decapsulation is
based on the MPLS label lookup
In Ethernet frames of interest
are also identified by
incoming port plus packet
header information Ethernet
frames are switched into one
or more MPLS pseudowires based
on the MAC DA lookup At the
end of a frames again are
switched based on MAC DA
lookup L3 MPLS deals with the
establishment of MPLS tunnels
At the MPLS tunnel initiation
packets entering the tunnel
are encapsulated with an MPLS
MPLS label and POP operations
are supported At the end of an
MPLS forwarding of IPv4 and
IPv6 packets is based on DIP
lookup Virtual routing tables
are supported for the DIP
lookup In the MPLS the concept
of VPN is introduced A VPN can
be of type or a VPN is similar
to a which identifies a group
of physical ports to be
included in a broadcast domain
instead of physical | ports |
| |
page OPENNSL_MPLS_OVERVIEW
MPLS management MPLS support
can be broken down into two
Layer and Layer MPLS L2 MPLS
consists of point to point
Virtual Private Wire Ethernet
frames are mapped into a MPLS
pseudowire based on incoming
port plus packet header
information At the end of a | pseudowire |
| |
page OPENNSL_MPLS_OVERVIEW
MPLS management MPLS support
can be broken down into two
Layer and Layer MPLS L2 MPLS
consists of point to point
Virtual Private Wire Ethernet
frames are mapped into a MPLS
pseudowire based on incoming
port plus packet header
information At the end of a
forwarding of Ethernet frames
after MPLS decapsulation is
based on the MPLS label lookup
In Ethernet frames of interest
are also identified by
incoming port plus packet
header information Ethernet
frames are switched into one
or more MPLS pseudowires based
on the MAC DA lookup At the
end of a frames again are
switched based on MAC DA
lookup L3 MPLS deals with the
establishment of MPLS tunnels
At the MPLS tunnel initiation
packets entering the tunnel
are encapsulated with an MPLS
MPLS label | PUSH |
| |
page OPENNSL_MPLS_OVERVIEW
MPLS management MPLS support
can be broken down into two
Layer and Layer MPLS L2 MPLS
consists of point to point
Virtual Private Wire Ethernet
frames are mapped into a MPLS
pseudowire based on incoming
port plus packet header
information At the end of a
forwarding of Ethernet frames
after MPLS decapsulation is
based on the MPLS label lookup
In Ethernet frames of interest
are also identified by
incoming port plus packet
header information Ethernet
frames are switched into one
or more MPLS pseudowires based
on the MAC DA lookup At the
end of a frames again are
switched based on MAC DA
lookup L3 MPLS deals with the
establishment of MPLS tunnels
At the MPLS tunnel initiation
packets entering the tunnel
are encapsulated with an MPLS
MPLS label and POP operations
are supported At the end of an
MPLS forwarding of IPv4 and
IPv6 packets is based on DIP
lookup Virtual routing tables
are supported for the DIP
lookup In the MPLS the concept
of VPN is introduced A VPN can
be of type or a VPN is similar
to a which identifies a group
of physical ports to be
included in a broadcast domain
instead of physical a VPLS VPN
identifies a group of virtual
ports to be included in a
broadcast domain In the MPLS a
virtual port is called an MPLS
a VPN consists of two MPLS
ports Packets arriving on one
MPLS port are sent directly
out the other MPLS port L3
VPNs are used to identify
virtual a routing table When
creating an L3 a VRF must be
specified At the end of a MPLS
the IPv4 or IPv6 DIP lookup is
qualified by VRF associated
with the L3 VPN page
OPENNSL_STACK_MANAGEMENT_OVERVIEW
Multi device Stack Control
APIs Network switches can act
in a stand alone manner or be
part of a larger distributed
switching system Such systems
may be simply a small number
of switching devices within a
single box or a larger number
of switching devices across
multiple stacked boxes or in a
chassis In each of these each
switch device must be
programmed with its address in
the larger Gigabit but a
single link failure can
disrupt the entire ring An SL
stack port in duplex mode
transmits and receives with a
single remote system to build
a ring of stacked two stack
ports are | required |
| |
page OPENNSL_MPLS_OVERVIEW
MPLS management MPLS support
can be broken down into two
Layer and Layer MPLS L2 MPLS
consists of point to point
Virtual Private Wire Ethernet
frames are mapped into a MPLS
pseudowire based on incoming
port plus packet header
information At the end of a
forwarding of Ethernet frames
after MPLS decapsulation is
based on the MPLS label lookup
In Ethernet frames of interest
are also identified by
incoming port plus packet
header information Ethernet
frames are switched into one
or more MPLS pseudowires based
on the MAC DA lookup At the
end of a frames again are
switched based on MAC DA
lookup L3 MPLS deals with the
establishment of MPLS tunnels
At the MPLS tunnel initiation
packets entering the tunnel
are encapsulated with an MPLS
MPLS label | SWAP |
| |
page OPENNSL_MPLS_OVERVIEW
MPLS management MPLS support
can be broken down into two
Layer and Layer MPLS L2 MPLS
consists of point to point
Virtual Private Wire Ethernet
frames are mapped into a MPLS
pseudowire based on incoming
port plus packet header
information At the end of a
forwarding of Ethernet frames
after MPLS decapsulation is
based on the MPLS label lookup
In Ethernet frames of interest
are also identified by
incoming port plus packet
header information Ethernet
frames are switched into one
or more MPLS pseudowires based
on the MAC DA lookup At the
end of a frames again are
switched based on MAC DA
lookup L3 MPLS deals with the
establishment of MPLS tunnels
At the MPLS tunnel initiation
packets entering the tunnel
are encapsulated with an MPLS
MPLS label and POP operations
are supported At the end of an
MPLS forwarding of IPv4 and
IPv6 packets is based on DIP
lookup Virtual routing tables
are supported for the DIP
lookup In the MPLS the concept
of VPN is introduced A VPN can
be of type or a VPN is similar
to a which identifies a group
of physical ports to be
included in a broadcast domain
instead of physical a VPLS VPN
identifies a group of virtual
ports to be included in a
broadcast domain In the MPLS a
virtual port is called an MPLS
a VPN consists of two MPLS
ports Packets arriving on one
MPLS port are sent directly
out the other MPLS port L3
VPNs are used to identify
virtual a routing table When
creating an L3 a VRF must be
specified At the end of a MPLS
the IPv4 or IPv6 DIP lookup is
qualified by VRF associated
with the L3 VPN page
OPENNSL_STACK_MANAGEMENT_OVERVIEW
Multi device Stack Control
APIs Network switches can act
in a stand alone manner or be
part of a larger distributed
switching system Such systems
may be simply a small number
of switching devices within a
single box or a larger number
of switching devices across
multiple stacked boxes or in a
chassis In each of these each
switch device must be
programmed with its address in
the larger Gigabit but a
single link failure can
disrupt the entire ring An SL
stack port in duplex mode
transmits and receives with a
single remote system to build
a ring of stacked | systems |
| |
page OPENNSL_MPLS_OVERVIEW
MPLS management MPLS support
can be broken down into two
Layer and Layer MPLS L2 MPLS
consists of point to point
Virtual Private Wire Ethernet
frames are mapped into a MPLS
pseudowire based on incoming
port plus packet header
information At the end of a
forwarding of Ethernet frames
after MPLS decapsulation is
based on the MPLS label lookup
In Ethernet frames of interest
are also identified by
incoming port plus packet
header information Ethernet
frames are switched into one
or more MPLS pseudowires based
on the MAC DA lookup At the
end of a frames again are
switched based on MAC DA
lookup L3 MPLS deals with the
establishment of MPLS tunnels
At the MPLS tunnel initiation
packets entering the tunnel
are encapsulated with an MPLS
MPLS label and POP operations
are supported At the end of an
MPLS | tunnel |
| |
page OPENNSL_MPLS_OVERVIEW
MPLS management MPLS support
can be broken down into two
Layer and Layer MPLS L2 MPLS
consists of point to point
Virtual Private Wire Ethernet
frames are mapped into a MPLS
pseudowire based on incoming
port plus packet header
information At the end of a
forwarding of Ethernet frames
after MPLS decapsulation is
based on the MPLS label lookup
In Ethernet frames of interest
are also identified by
incoming port plus packet
header information Ethernet
frames are switched into one
or more MPLS pseudowires based
on the MAC DA lookup At the
end of a frames again are
switched based on MAC DA
lookup L3 MPLS deals with the
establishment of MPLS tunnels
At the MPLS tunnel initiation
packets entering the tunnel
are encapsulated with an MPLS
MPLS label and POP operations
are supported At the end of an
MPLS forwarding of IPv4 and
IPv6 packets is based on DIP
lookup Virtual routing tables
are supported for the DIP
lookup In the MPLS the concept
of VPN is introduced A VPN can
be of type or a VPN is similar
to a | VLAN |
| |
page OPENNSL_MPLS_OVERVIEW
MPLS management MPLS support
can be broken down into two
Layer and Layer MPLS L2 MPLS
consists of point to point
Virtual Private Wire Ethernet
frames are mapped into a MPLS
pseudowire based on incoming
port plus packet header
information At the end of a
forwarding of Ethernet frames
after MPLS decapsulation is
based on the MPLS label lookup
In | VPLS |
| |
page OPENNSL_MPLS_OVERVIEW
MPLS management MPLS support
can be broken down into two
Layer and Layer MPLS L2 MPLS
consists of point to point
Virtual Private Wire Ethernet
frames are mapped into a MPLS
pseudowire based on incoming
port plus packet header
information At the end of a
forwarding of Ethernet frames
after MPLS decapsulation is
based on the MPLS label lookup
In Ethernet frames of interest
are also identified by
incoming port plus packet
header information Ethernet
frames are switched into one
or more MPLS pseudowires based
on the MAC DA lookup At the
end of a frames again are
switched based on MAC DA
lookup L3 MPLS deals with the
establishment of MPLS tunnels
At the MPLS tunnel initiation
packets entering the tunnel
are encapsulated with an MPLS
MPLS label and POP operations
are supported At the end of an
MPLS forwarding of IPv4 and
IPv6 packets is based on DIP
lookup Virtual routing tables
are supported for the DIP
lookup In the MPLS the concept
of VPN is introduced A VPN can
be of type or a VPN is similar
to a which identifies a group
of physical ports to be
included in a broadcast domain
instead of physical a VPLS VPN
identifies a group of virtual
ports to be included in a
broadcast domain In the MPLS a
virtual port is called an MPLS
a VPN consists of two MPLS
ports Packets arriving on one
MPLS port are sent directly
out the other MPLS port L3
VPNs are used to identify
virtual a routing table When
creating an L3 | VPN |
| |
page OPENNSL_MPLS_OVERVIEW
MPLS management MPLS support
can be broken down into two
Layer and Layer MPLS L2 MPLS
consists of point to point
Virtual Private Wire Ethernet
frames are mapped into a MPLS
pseudowire based on incoming
port plus packet header
information At the end of a
forwarding of Ethernet frames
after MPLS decapsulation is
based on the MPLS label lookup
In Ethernet frames of interest
are also identified by
incoming port plus packet
header information Ethernet
frames are switched into one
or more MPLS pseudowires based
on the MAC DA lookup At the
end of a frames again are
switched based on MAC DA
lookup L3 MPLS deals with the
establishment of MPLS tunnels
At the MPLS tunnel initiation
packets entering the tunnel
are encapsulated with an MPLS
MPLS label and POP operations
are supported At the end of an
MPLS forwarding of IPv4 and
IPv6 packets is based on DIP
lookup Virtual routing tables
are supported for the DIP
lookup In the MPLS the concept
of VPN is introduced A VPN can
be of type | VPWS |
| |
