06-17-2015 12:59 PM - edited 03-05-2019 01:41 AM
does the ASR 920 support subinterface configurations in GigabitEthernet interfaces like the ASR1001?
example of ASR 1001 configuration:
interface TenGigabitEthernet0/0/1
no ip address
!
interface TenGigabitEthernet0/0/1.1
encapsulation dot1Q 4011
ip address 10.11.51.1 255.255.255.0
ipv6 address 2001:470:8865:A5B::6D/64
ipv6 enable
bfd interval 100 min_rx 100 multiplier 3
The ASR920 CLI does not allow a subinterface to be created on the GigabitEthernet interfaces:
QAcore2(config)#interface GigabitEthernet0/0/0.1
^
% Invalid input detected at '^' marker.
06-17-2015 05:36 PM
Hi,
The sub-interface behavior shall be achieved by creating service instances/BDIs under the physical interfaces as below.
interface GigabitEthernet0/0/0
no ip address
load-interval 30
cdp enable
service instance 1 ethernet
encapsulation dot1q 4011
rewrite ingress tag pop 1 symmetric
bridge-domain 4011
!
end
interface BDI4011
ip address 10.11.51.1 255.255.255.0
end
ASR920#sh bridge-domain 4011
Bridge-domain 4011 (2 ports in all)
State: UP Mac learning: Enabled
Aging-Timer: 300 second(s)
Maximum address limit: 16000
4011 (up)
GigabitEthernet0/0/0 service instance 1
ASR920#
A Configuration guide can be found via:
Carrier Ethernet Configuration Guide (Cisco ASR 920 Series)
Configuring IEEE 802.1ad
http://www.cisco.com/c/en/us/td/docs/ASR920s/asr920/configuration/guide/ce/b_ce_xe-313s-as
r920-book/b_ce_xe-313s-asr920-book_chapter_01100.html
HTH
Regards
Inayath
**Please do nt forget to rate if this info is helpfull.
06-30-2015 06:34 AM
Many thanks Inayath, I shall try this
06-30-2015 05:46 PM
john,
Thanks sure I will wait for your update.
01-12-2017 10:56 AM
Hi,
Sub-interfaces are not the same as using bridge ones. BDI limits you to only use 4095 IP addresses per device, if one is using one per bridge. Back to the original question, is it possible to use sub-interfaces?
Thank you,
Liridon
08-16-2018 03:05 AM
Thanks for the solution. But how do we monitor the BDI? LibreNMS doesn't seem to show the graph for the BDIs. Any other Solutions for this?
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