4-51
vlink-peer
Syntax
vlink-peer
router-id
[
hello
seconds
|
retransmit
seconds
|
trans-delay
seconds
|
dead
seconds
|
simple
password
|
md5
keyid
key
] *
undo
vlink-peer
router-id
View
OSPF area view
Parameters
route-id
: Router ID of virtual link peer.
hello seconds
: Specifies the interval, in seconds, at which the router transmits hello packet. It ranges
from 1 to 8192 and defaults to 10. This value must equal the
hello
seconds
value of the router virtually
linked to the interface.
retransmit seconds:
Specifies the interval, in seconds, for retransmitting the LSA packets on an
interface. It ranges from 1 to 3600 and defaults to 5.
trans-delay
seconds:
Specifies the delay, in seconds, for transmitting LSA packets on an interface. It
ranges from 1 to 3600 and defaults to 1.
dead seconds
: Specifies the interval, in seconds, of death timer. It ranges from 1 to 8192 and defaults
to 40. This value must equal the
dead
seconds
of the router virtually linked to it and must be at least
four times of the hello
seconds
.
simple
password:
Specifies the simple text authentication password, which contains up to eight
characters, of the interface. This value must equal the authentication key of the virtually linked peer.
keyid:
MD5 authentication key ID. It ranges from 1 to 255. It must be equal to the authentication key ID
of the virtually linked peer.
key
:
MD5 authentication key. If you use simple text authentication key, you can input a string containing
1 to 16 characters. When you use the
display current-configuration
command to display system
information, the MD5 authentication key is displayed in the form of cipher text with a length of 24
characters. Inputting the
key
in the form of cipher text with a length of 24 characters is also supported.
Description
Use the
vlink-peer
command to create and configure a virtual link.
Use the
undo vlink-peer
command to cancel an existing virtual link.
According to RFC2328, an OSPF area must be connected to the backbone network. You can use the
vlink-peer
command to keep the connectivity. Virtual link can be regarded as a common interface that
uses OSPF because the principle for configuring the parameters such as hello, retransmit, and
trans-delay on it is similar.
Considerations on parameters:
z
The smaller the hello interval is, the faster the network converges and the more network resources
are consumed.
z
A too small retransmission interval will lead to unnecessary retransmissions. A big value is
appropriate for a low speed link.
z
You need to specify an appropriate transmission delay with the
trans-delay
keyword.
Summary of Contents for 5500-EI PWR
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Page 228: ...ii stp transmit limit 1 44 vlan mapping modulo 1 45 vlan vpn tunnel 1 46...
Page 477: ...5 24 Sysname vlan 2 Sysname vlan2 service type multicast...
Page 503: ...2 3 System View return to User View with Ctrl Z Sysname dot1x url http 192 168 19 23...
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Page 597: ...2 2 security policy server 192 168 0 1 user name format without domain...
Page 648: ...1 9 Examples Clear static ARP entries Sysname reset arp static...
Page 663: ...4 3 Sysname resilient arp interface vlan interface 2...
Page 767: ...1 28 From 12 00 Jan 1 2008 to 12 00 Jun 1 2008...
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