Bgp Configuration Views - HP 6125XLG Layer 3 - Ip Routing Configuration Manual

MP_REACH_NLRI—Carries feasible route prefixes and next hops for multiple network layer
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protocols.
MP_UNREACH_NLRI—Carries unfeasible route prefixes for multiple network layer protocols.
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MP-BGP uses these two attributes to advertise feasible and unfeasible routes for different network layer
protocols. BGP speakers not supporting MP-BGP ignore updates containing these attributes and do not
forward them to its peers.
The current MP-BGP implementation supports multiple protocol extensions, including VPN, IPv6, and
multicast. For more information about VPN, see MPLS Configuration Guide.
Address family
MP-BGP uses address families and subsequent address families to identify different network layer
protocols for routes contained in the MP_REACH_NLRI and MP_UNREACH_NLRI attributes. For example,
an Address Family Identifier (AFI) of 2 and a Subsequent Address Family Identifier (SAFI) of 1 identify
IPv6 unicast routing information carried in the MP_REACH_NLRI attribute. For address family values, see
RFC 1700.

BGP configuration views

BGP uses different views to manage routing information for different address families and different VPN
instances. Most BGP commands are available in all BGP views. BGP supports multiple VPN instances by
establishing a separate routing table for each VPN instance.
Table 8 describes different BGP configuration views.
Table 8 BGP configuration views
View names
BGP view
BGP IPv4 unicast address
family view
BGP IPv6 unicast address
family view
BGP VPNv4 address family
view
Ways to enter the views
<Sysname> system-view
[Sysname] bgp 100
[Sysname-bgp]
<Sysname> system-view
[Sysname] bgp 100
[Sysname-bgp] address-family
ipv4 unicast
[Sysname-bgp-ipv4]
<Sysname> system-view
[Sysname] bgp 100
[Sysname-bgp] address-family
ipv6 unicast
[Sysname-bgp-ipv6]
<Sysname> system-view
[Sysname] bgp 100
[Sysname-bgp] address-family
vpnv4
[Sysname-bgp-vpnv4]
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Remarks
Configurations in this view apply to
all address families of the public
network and all VPN instances (such
as confederation, GR, and logging
configurations), or apply to all
address families of the public
network.
Configurations in this view apply to
IPv4 unicast routes and peers on the
public network.
Configurations in this view apply to
IPv6 unicast routes and peers on the
public network.
Configurations in this view apply to
VPNv4 routes and peers.
For more information about BGP
VPNv4 address family view, see
MPLS Configuration Guide.