Hey Landy, That 1s GCP latency suggests more than poor peering. We’ve seen Singapore-to-Tokyo "trombones" caused by OHTTP relay chains and inspection clusters in Azure japaneast.
GCP often triggers these high-latency paths when encountering mid-path relays or non-standard certificate pinning. Check for encapsulation or proxying… your traffic could be forced through a processing hub in Japan before hitting the internet. - Joseph II -------- Original Message -------- On Sunday, 01/18/26 at 09:50 Landy Bible via NANOG <[email protected]> wrote: Hey NANOG, I realize this is "NA" NOG list, but I assume I'm not the only one here who is operating a global network. Context: we have a dozen or so PoPs around the world to serve our load balancer product. We're using continent-specific prefixes to run anycast for this. We are on at least one IX at each location, and use Cogent as our primary transit provider. We'd like to add a real Tier 1 provider at each pop in the future, but In general, this all works ok right now. However, Singapore is a problem. We're on SGIX, but we're seeing a rather high percentage of traffic that originates in Singapore entering our Tokyo PoP instead. Google Cloud in particular is REALLY bad, with application latency testing approaching nearly 1 second, when our typical global latency is under 100ms on an end to end test. Other SG clouds are bad, but not THAT bad. My question to the list here is... for those of you who also operate in Singapore... what would you suggest we do to improve things here? We're looking at adding Arelion or NTT transit in APAC, but we're also trying to get PNIs (or even full IP transit) to the big Singapore networks like SingTel, SingNet, and StarHub, but we haven't had any luck yet. Perhaps we just don't know the right people. >From a business perspective our primary concern is latency for our big customers who are hosted on the clouds in the area, but I don't want to just ignore our other customers who aren't in the cloud. Based on my research thus far, my gut says getting transit from Arelion is probably my best "bang for buck" move, but I'm wondering if any of you have any insights or wisdom to share about Singapore or APAC in general. Thanks All, Landy AS62902 _______________________________________________ NANOG mailing list https://lists.nanog.org/archives/list/[email protected]/message/7BRGQAGWBGFQOOJHV4ZVXVZZFPJHPKH2/ _______________________________________________ NANOG mailing list https://lists.nanog.org/archives/list/[email protected]/message/KYVGTYFXMAKP5TFXQXVRLAMD4N7XU4N5/
