News/ Announcements
29 Jun 2015

Decommission of HKIX1 Old Switch on June 30, 2015

Please be reminded HKIX will decommission the Old switch at HKIX1 on June 30, 2015. If you have GE connection(s) which is/are not migrated to the new switches, your services will be affected. For details, please refer to our announcement on 30 Jun 2014 in http://www.hkix.net/hkix/announce.htm

Date: June 30 2015 (Tue)
Location: HKIX1
Impact: HKIX will shut down the Old switch at HKIX1 and all connections to the Old switch will be disconnected.


 Application to Connect

 Site Access Procedures

 Request for Filter Update

 HKIX Switching Statistics

 Schedule Maintenance Schedule Maintenance

 IPv4 Renumbering IPv4 Renumbering


29 May 2015

Connectivity issue on some HKIX connections on 29 May, 2015

It is found that connectivity of some participants' connections were lost at around 07:50 - 08:02 & 09:42 - 14:23 HKT (UTC+8) and the connections had been resumed by around 14:23 HKT (UTC+8). Those connections are located on the same line card. The problem was reported to the equipment vendor who was urged to resolve it as soon as possible. We'll keep HKIX participants notified of update on this issue. We are sorry for inconvenience caused.

30 Apr 2015

Scheduled Maintenance for HKIX switches at HKIX1 and Route Server 2 (RS2) Upgrade

Date: 31-May-2015 (Sunday)

Time Window: 0500 - 0800 HKT (UTC +8)

RS2 IPv4 address:
RS2 IPv6 address: 2001:7FA:0:1::CA28:A102/64


Firmware Upgrade of HKIX Switches at HKIX1

Time: 0500 - 0700 HKT (UTC +8)

HKIX will perform firmware upgrade on HKIX1 switches and reload the Ethernet modules one by one. You may experience up/down events on your HKIX link(s) within 30 minutes during the module startup. In normal situation, if you have multiple LACP links to HKIX, the links should be connected to different Ethernet modules and the traffic will be forwarded by the rest of LACP links on the same switch. Note that HKIX connections at HKIX1b will NOT be affected by this upgrade.


Route Server 2 (RS2) Upgrade

Time: 0700 - 0800 HKT (UTC +8)

There will be no impact to HKIX participants which have BGP sessions with both route servers RS1 and RS2. During the upgrade, your BGP sessions with RS2 will be down but your BGP sessions with the other route server RS1 ( & 2001:7FA:0:1::CA28:A101/64) will NOT be affected and the multi-lateral peering can still be maintained.

If you have not set up BGP sessions with both RS1 and RS2, you should do it ASAP for better resilience.

24 Apr 2015

Please kindly note that HKIX will carry out network switch maintenance at the Mega-I 32/F on Apr 30, 2015 with the following details:

Date                        : Apr 30 2015(Thur)
Location                  : 32/F, Mega-iAdvantage
Time                        : 16:00 – 16:30 (HK Time UTC +8)
Impact                     : All HKIX connections at Mega-I 32/F will be affected during the maintenance window

17 Apr 2015

HKIX Scheduled Maintenance for HKIX1 Old Switch on June 1, 2015 17:30-18:00 (UTC+8)

Date : June 1 2015(Mon)
Location : HKIX1
Time : 17:30 – 18:00 (HK Time UTC +8)
Maintenance : HKIX will carry out maintenance of HKIX1 Old Switch’s uplinks
Impact : All HKIX1 old switch’s connections will be affected during the maintenance window

1 Apr 2015

Please kindly note that HKIX will migrate HKIX2 switch’s uplinks to HKIX1 new switch on May 4, 2015 17:30-18:00 (UTC+8) with the following details:

Date : May 4 2015(Mon)
Location : HKIX2
Time : 17:30 – 18:00 (HK Time UTC +8)
Maintenance : HKIX will migrate HKIX2 switch’s uplinks from HKIX1 old switch to HKIX1 new switch

Impact  : All HKIX2 connections and all BGP sessions with HKIX Route Server 2 will be affected during the maintenance window

11 Mar 2015

IPv4 Address Renumbering for HKIX Public Peering LAN: 12-15 Jun 2015 HKT (Fri-Mon)

Dear HKIX Participants,

This year is the 20th Anniversary of HKIX, which was set up in 1995.  HKIX has experienced steady growth during the last 20 years.  To cope with the growth, a lot of changes and upgrades had been done already.  For the IPv4 address block currently used for HKIX Public Peering LAN (202.40.160/23), we have already used up more than 80%.  In order to cope with the continuous growth of HKIX and having learnt from the experience of other IXPs around the world, we have decided to perform IPv4 address renumbering for HKIX Public Peering LAN during 12-15 Jun 2015 HKT.  This is the only option for solving the problem while minimizing the impact to the HKIX community.

A NEW IPv4 address block will be used and the network mask of HKIX public peering LAN will be changed from /23 to /21.  All HKIX participants will have to re-configure the IPv4 addresses on their routers in order to use the new IPv4 addresses to do peering over HKIX. 

During the 4-day migration (12-15 Jun 2015 HKT), HKIX will do parallel-run of both new and old IPv4 address blocks.  HKIX new route servers will serve the multilateral peering for new address block while the existing route servers will serve the multilateral peering for old address block.  HKIX participants can change their peering IPs at any time during the 4-day migration period and the old HKIX route servers and the old IPv4 address block 202.40.160/23 will cease operations right after completion of the IPv4 address renumbering on 15 Jun 2015 HKT.

Pre-announcement of this migration was made during APRICOT-APAN 2015 held in Fukuoka last week at “Peering Forum (2)” and “Lightning Talks” sessions.  Please refer to the following links:


To obtain the detailed arrangement for IPv4 address renumbering, please provide the following information to HKIX-NOC (hkix-noc@cuhk.edu.hk):

Your ASN:
Your IPv4 address(es) at HKIX:
Your email contact for the IPv4 address renumbering:

HKIX-NOC will contact you by email individually after receiving information from you.
Thank you very much for your cooperation on this migration.  Let us work together to make it a successful one.

Best regards,

P.S.  There will be no change to IPv6 address block used for HKIX Public Peering LAN.

1 Mar 2015

New participants connected to HKIX

We are pleased to announce that Criteo, EFLY Network Limited and Incapsula have been directly connected to HKIX. Please visit our Participants page to learn more about them.


>> More News/ Announcements

Copyright 2014. The Chinese University of Hong Kong. All rights reserved.

Site map Contact Us Home