Chapter 11 Routing
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11.8.4 Example Scenario
This is an example scenario for using BGP on the Zyxel Device. See also
for
information on configuring an IPSec tunnel to an Amazon VPC (Virtual Private Cloud).
11.8.4.1 Scenario: CE - PE (MLPS)
In this scenario, you want to transmit BGP packets from a
CE
router (Zyxel Device) to a peer BGP
PE
router in an
MPLS
network.
•
CE
: The Zyxel Device is the customer edge router located on the customer premises and connects to
a PE router in the service provider MPLS network.
•
PE
: The provider edge router is located at the edge of the service provider MPLS network.
•
MPLS:
Multi Protocol Label Switching (MPLS) forwards data from one network node to the next based
on path labels rather than network addresses.
Figure 300
Scenario 1: CE Router - to - MPLS
Keepalive Time
Keepalive messages are sent by the Zyxel Device to a peer BGP router to inform it that
the BGP connection between the two is still active. The
Keepalive Time
is the interval
between each Keepalive message sent by the Zyxel Device. We recommend
Keepalive
Time
is 1/3 of the
Hold Time
time.
Hold Time
This is the maximum time the Zyxel Device waits to receive a Keepalive message from a
peer BGP router before it declares that the peer BGP router is dead.
Hold Time
must be
greater than the
Keepalive Time
.
Maximum Prefix
A prefix is a network address (IP/subnet mask) that a BGP router can reach and that it
shares with its neighbors. Set the maximum number, from 1 to 4294967295, of prefixes that
can be received from a neighbor. This limits the number of prefixes that the Zyxel Device
is allowed to receive from a neighbor. If extra prefixes are received, the Zyxel Device
ends the connection with the peer BGP router. You need to edit the peer BGP router
configuration to bring the connection back.
OK
Click
OK
to save your changes back to the Zyxel Device.
Cancel
Click
Cancel
to exit this screen without saving.
Table 149 Configuration > Network > Routing Protocol > BGP (continued)
LABEL
DESCRIPTION
Summary of Contents for USG110
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