The previous trip to Tokyo had left the SMBC situation far from resolved, and they said that I needed to come back for seven contiguous business days. So at the RIPE meeting in Bucharest I worked with Maz to coordinate schedules between his travel and Thanksgiving, and found a narrow window.
There was a lot of sturm und drang in the national news about flight cancellations due to the US government shutdown over the fight with Trump over Medical Care. Flights looked OK a week before. And then two New England supposed Democrats sold their souls and the American people to Satan.
In all the craziness, on the tenth, five days out, I realized that I had forgotten to book a Tokyo hotel. I spent hours finding that almost all hotels were booked, except for a few expensive ones still two train stops from the office. Finally, Kitamura san figured out that I could ping pong between the two Iidabashi APA hotels, and booked for me.
Friday 2025.11.14
I checked in using my iPhone the day before the flight. But the web site on my computer showed not checked in. And then I got a text saying “We’re sorry about the changes to your travel plans …” and offering a free meal voucher. So I called Global Services. We concluded that United’s computer was having a bad day.
Saturday 2025.11.15
I woke at three o’clock, did the last touches of packing, had breakfast, called an Uber at 04:25, and the Tesla arrived at 04:35. We were at the airport at five o’clock. Security was a walk-through and then there was the long walk to the E gates. I got to the gate five minutes early and boarded.
United flight 1164 to San Francisco was a 737max-9. It looked pretty full. My seatmate had the sniffles. A s usual, I was one of the few with a mask. I texted a bit with Tom Hirsch. We pushed back five minutes early at 05:55 and took off at 06:10. We landed in SFO at 07:35. Our gate was still occupied, so we sat in a penalty box for a bit and docked at gate E13 at 07:45. The walk to the G Concourse took me 20 minutes. I settled in the Polaris lounge.
I left the lounge at 09:20 for the long walk to G12 and boarded by 09:35. United flight 875 to Haneda was a 777-200 in so-so shape. and the FAs said it was completely full. I filled out the automatic immigration form and got my QR code. The doors closed at 10:05, we pushed at 10:10 five minutes early, and the wheels were up at 10:25. It was a bumpy ride for the first 3/4 of an hour. I slept through it. Then they served to takeoff meal; I had the washoku which was OK.
Sunday 2025.11.15
I slept for four hours or so and then watched a Chinese movie called “The Wig“ which was pretty good and then had the landing meal. We landed in Haneda at 14:07 and were docked by 14:20. There was the long walk to Immigration as usual. But I was through Immigration by 14:35, and in an Uber by 14:45. It was mostly sunny and 14c. The Uber was a Tesla again. traffic was light, and the driver liked having a zoomy car. We were at the APA Iidabashi Ekiminami by 15:15 and I was in my room by 15:25.
The room was a bit bigger than the last time. It had a luggage rack, but I did not think there was really room. I unpacked the computer etc., and cleaned up some minimal email. To stay awake until a reasonable hour, I watched junk until eight o’clock.
Monday 2025.11.17
I did not really sleep past two o’clock. I obsessed about bank bureaucracy and that I had not brought a copy of the revised death certificate. So I prepped Katen to FedEx one. At 07:40, I walked across the street to the machine udon shop and had a ¥700 bowl of udon with an egg; pretty junky. Amusing noise from outside as the construction workers received their morning instructions and pap talk.

By nine o’clock, I was ready to go back to sleep. But, of course, Maz was soon to arrange to meet to go to SMBC. What I needed was coffee.
At 10:15, I went to Doutor because I did not remember just how bad their coffee was. It was a beautiful 22c day, as if it was early autumn. I hopped the Tozai Sen to SMBC and met Maz in the Lobby at 11:00. They gave us the papers to be notarized, I filled them out, and we grabbed a taxi to the Japanese notary over the other side of Marunouchi to catch them before they closed for lunch at 11:30. We did the signature dance quickly, and they said for us to come back at two o’clock to pick up the papers.
We went down to the basement and ate in a saba restaurant. I had saba with miso, which was actually good. Maz wanted to go shop for a Christmas present for Kaede, so I took the Yurakacho sen back to my hotel to get a half hour nap. Maz met me at 13:30, and we took the Yurakacho back to the notary in Marunouchi and picked up the papers. Then a taxi back to SMBC. They drowned us is an amazing mass of paperwork until four o’clock, and told us to come back the next day for more. Maz headed back to Mitaka to pick up Kaede, and I took the Tozai sen back to Iidabashi to the IIJ office.

Of course I had missed Cola’s presentation of our work.
I spent time with an American Waseda grad student intern Yoshi, from Westchester, whose research was trusted environments. Then I spent time with Cola on the v6 topology work, and gossiped with other folk about v6, RPKI, security etc. I worked some and cleaned up backlog. I left the office at 18:45, and picked up some konbini food on the way back to my hotel. I worked until eight and then went to sleep.
Tuesday 2025.11.18
I woke at 03:30 which sounds bad, but it was seven and half hours of sleep. I wondered if it was not drinking coffee all day except for the bad one in the morning. I lolled around trying to get more sleep, but gave up at 06:30. I dressed and packed, as I had a discontinuous hotel stay and would have to move to the other APA Iidabashi around the corner for one night. There was a com.lb zone file issue with rip.psg.com being out of date. I looked at it, was confused, and begged Rob to take a look.
At eight, I left my luggage at the front desk and walked to Café de Crié down the street and had a ham and tomato with gloop breakfast sandwich and an Americano with an extra shot that was drinkable. At 08:30 I took Tozai Sen to Otemachi and did the long walk to the SMBC main office. Maz was a few minutes ahead of me. We went in when they opened at nine and spent an hour doing more paperwork. I wrote my home address for the nineteenth and twentieth times and stamped a lot of papers. I even used their iPad to specify the details of the transfer. We were out by ten, which was amazing. They said they had what they needed to do the transfer. I should watch, and when it was received, come back, or go to any branch to finalize closing of the account. It was 15c and a clear day, but not the previous day’s warmth. I got on Tozai Sen back to the IIJ Lab, arriving a bit before 10:30. The place was pretty empty.
I chatted with Romain about the Lab in general and some ideas for getting graduates back to visit. A gang of us wet to lunch at Charcoal Grilled Dried Fish Restaurant Echigoya Kamemaru, and I had my favorite miso gindara as usual. Then some work on the com.lb zone problem, finally hacking around it. At 15:30, Pascal and Thomas presented on using City Community Tagging to detect anycast; it was muddy and not conclusive. I reviewed a few APRICOT submissions. I resisted checking whether CitiBank had received the transfer. In reality, my guess was Thursday. I chatted more with Romain and Yoshi.
I left the office shortly after seven. I grabbed two o-nigiri at the konbini, and got my bag from the APA Iidabashi Ekiminami, which had no room that night (big concert at Tokyo Dome), and went to check in at the APA Iidabashi Ekimae two blocks away. The check-in was a big computer thing, which was as difficult as paper. But I made it. It was 80% more than the Ekiminami, and was maybe 10% larger. But it was only one night, and not a lot of choice. I unpacked, ate my o-nigiri, cleaned up some email etc, and tried to get to bed by 20:30, as it had worked the previous night.
Wednesday 2025.11.19
I managed to sleep in, with breaks, until 07:30. I began to believe this no coffee after noon thing. I showered, dressed, and packed up. I ignored email, as I assumed I would have plenty of time to deal with it in the office. I checked out of APA Iidabashi Ekimae at 08:30, dropped my luggage off back at APA Iidabashi Ekiminami where I would check in that evening, picked up a katsu sandwich at the corner shop, got a great coffee at the little place next to IIJ’s building, and was in the office by nine. It was 8c and clear blue, a pretty Tokyo fall day.
I cleaned up email until ten. I removed the ProxMox backup server work from raid0.dfw.rg.net as Rob and Hans were pushing just staying on restic. Then Rob dragged me (and a silent Hans) down a couple of DNSSEC rabbit holes. I tried calling an eyeglasses place recommended by Kitamura san, Ogura, but they did not speak English. George Michaelson talked me into trying PhotoStructure.app. So I loaded it up and let it start finding photos on my laptop.
I had lunch with Kitamura san, which was really nice. We went to a real soba ya over in Kagurazaka, Kagurazaka Kuzuryu Soba, to which I had not gone since living in Tokyo. Very tasty. We talked about her twelve year old, Annie, who was very over-sensitive, noise, social, …, but bright. And I told of Salma’s difficulties. Of course we also talked about the Lab sociology.
Back at the Lab, Kitamura san called the recommended optical/glasses shop for me, and they said it would take a week to ten days. So much for that. I chatted for a while with Pascal, an Anja Feldman graduate who had been a visitor for a few months and was going to DE-CIX. The afternoon is a quiet email time in Tokyo as the States is going to sleep and Europe has yet to wake; and the Lab was pretty empty.
I tried to reserve my flights to Jakarta in February for APRICOT but the ANA web site let me get all the way to the end and then failed with an error code. I tried three times. And I could not call them, as the English language version of the web site assumed I was in the States.
I left the office at 18:30. It was down to 10c. I stopped at the konbini and got one o-nigiri, checked back in to the APA Iidabashi Ekiminami, and unpacked. I managed to get rid of the big stack of the ¥10,000 notes I had been carrying for six years or whatever. I worked, ate my o-nigiri, and was asleep before nine o’clock.
Thursday 2025.11.20
Though fitful, I managed to sleep until 06:30. I worked for a bit, dressed, walked to the sandwich store, up the hill to the little coffee shop, and to the office by nine. I ate my sandwich, drank my coffee, and cleared a bunch of backlog. Eventually, Malte, Pierre Luis, and Romain showed up and we chatted about various research work, IIJ Lab server infrastructure, and other fun stuff. Eventually Cola showed up and we worked with him on the IPv6 topology growth work. At one o’clock, everyone went to lunch while I joined the APRICOT PC call.
As I wanted to be sure to get a good fare to APRICOT, I spent an hour on the phone with an ANA agent and actually managed to get a reservation and pay for it. As I was calling from Japan, I had to pay in JPY. But it looked as if the base rate was cheaper than the USD quote on the web site; so maybe, with the exchange costs, it came out in the wash. It took me another hour to select seats on the web site from hell. I could not select the seat on my last leg, SFO to PDX, as the site would error out.
I chatted with Christof Visser for a while. He was doing a lot of infrastructure and redundancy work in the Pacific Islands. I Then chatted international politics with two interns, one from China and one India. It was a bit sophomoric. I Left the office at about 19:30, stopped at the Konbini for minimal food, I was back in my hotel by 19:45. I worked until after nine and went to sleep.
Friday 2025.11.21
Katen and Helen woke me at four o’clock with pictures of the Bainbridge septic field work. Great progress and looked horrifyingly professional. I went back to sleep until Katen woke me at seven to ask about the bank transfer; no visible progress. So I dressed,left the hotel, got my breakfast sandwich and my sole cup of coffee (snif!), and was in the office by 08:30. It was sunny and 8c.
In the office, I ate my katsu sandwich, had my one cup of coffee (snif), exchanged RIPE political email with Mirjam, reported on the result of moderating coffee intake to a bunch of friends, cleaned up email, and wrote to the septic guy to say thanks. I worked through the morning, and made lunch dates with Emiko and Kempei (Wednesday) and Zita’s friend Peggy (Monday).
At one, five of us went over the Kagurazaka hill to Tonkatsu Kenshin, regular but good. After, Romain, Cola, and I discussed the IPv6 growth research, with an eye to a possible presentation at APRICOT; though Mark and Philip had yet to encourage me. Kitamura stopped by to say goodbye; though we might meet Wednesday morning. Pascal showed me some new interesting results on his and Thomas’s measurements using city community tags to detect anycast prefixes. I suggested RIPE Atlas traceroutes to validate anycasted sources.
I left the lab at 19:45 and headed back to the hotel. There were a lot of folk out in the side streets, eating, walking, whatever. The konbini was out of o-nigiri. As I was still not hungry after a large lunch, I took it as a sign. I stopped at the shrine, but it was a bit busy so I was not comfortable. I got back to the hotel, worked to 21:45, and went to sleep.
Saturday 2025.11.22
I woke at 03:30 to find that the bank transfer had completed. I texted Katen and went back to sleep. By 07:30 I had decided to get the hell outta Dodge, and leave closing the bank account to another trip. So I rebooked United for the same flights but on Sunday, saving three days. I wrote to Emiko apologizing for cancelling lunch with her and Kempei; a bit of a bummer. I also wrote to Peggy telling her I was bailing early. I dressed and went down to the lobby and spent 15 minutes dealing with the early departure. They were kind. I grabbed my usual katsu sandwich at the corner and headed up the hill. The favorite coffee shop, Aomi Coffee, was closed until ten o’clock, so I had to settle for FourBucks; half as good, almost twice the price.
In the Lab, I emailed Kitamura san and Romain about my bailing early. A RIPE/NCC email conversation with Mirjam got pretty serious. At eleven, Peggy called on the phone and we agreed to meet for soba at 12:30. I kept working until 12:15 when I walked to Kagurazaka Kuzuryu Soba to meet Peggy, who was 20 minutes late as usual. I did not have to hold up my end of the conversation to say the least; nary a word in edgewise. We finally broke up at 15:15, and I was back at the office by 15:30. It was a gorgeous day, 17c and clear.
In Second Life, a neighbor offered to sell a piece of land we had always wanted. We started discussing price while I looked in all our accounts for land tier. When I went to look in Zita’s account, it was suspended!! I wrote to Aiyana to ask what the heck was up. Per Rob’s suggestion, I started to installing forgejo to migrate git.rg.net. That lasted until seven in the evening when I gave up and walked back to my hotel. There was a complex exchange where they had left a note asking if I would please return the original receipt as I was checking out early and it would change. It was in my room and the room key did not work. So it was a few elevator rides. I read until eleven and went to sleep.
Sunday 2025.11.23
I woke at seven, dressed, and started packing. Fergal had great comments on my long term view presentation. So I incorporated them and sent it off to Hans Petter. Fergal and I exchanged a bunch of email about the usual. I finished packing by 09:30, and went down to check out. I left my luggage as I did not want to haul it up the hill to the Lab. It was finally cloudy, and a warmish 10c. On the way up, I stopped at the konbini for an o-nigiri, and arrived at Aomi Coffee just as it opened at ten o’clock. I chatted once more with Fergal and hacked some more on the forgejo conversion. A co-researcher at the Lab, Thomas Krenc, pointed me to a podcast on Tokyo micro-scale, The Magic of Tokyo, which I found a good description and explanation.
At one o’clock, I headed out of the Lab and walked back to the APA Iidabashi Ekiminami to pick up my luggage. Having had no lunch, I was tempted to stop for another o-nigiri; but one may not eat while walking or in the train. The streets were full of people and the shrine was totally crowded for Thanksgiving. I wondered if this was the last time I would see Tokyo and missed Zita a lot.
I got my luggage from the hotel and walked the one block to the Tozai Sen which I took to Nihonbashi to change to the Asakuka Rapid Express for the thirty minute ride to Haneda Terminal 3. I got a seat on both trains. I arrived in Haneda just after two o’clock. I went to check-in for the doc check, and decided to not check my bag. I walked through security and Emigration, and was in the ANA lounge by 14:15. As I had eaten little, I had three pieces of spicy, for Japan, Korean karaage and some rice. I cleaned up some final email and pretended to work.
At 15:30, I waked down to the gate and played the Global card to cut through boarding. United flight 876 to San Francisco looked to be the same 777-200 as I flew in, and was in OK shape. I think it was full. Because I had booked late, I had a non-window; no big deal. We pushed back at 16:25, exactly on time, and took off at 16:45. The captain came on the PA and was a woman. I watched Rocky Horror Picture Show which I had never seen. I was impressed. Acting, choreography, music, production. No wonder it remains a classic. The washouku was OK and I indulged in a citrus cake and watched Goodfellas. Then I slept for maybe three to hours until the landing washouku, which was much better than that on the same flight in September.
We made the softest landing ever at 08:50, taxied for 15 minutes, and were then tugged to the gate. I was through Immigration by 09:15. but, due to the construction, to get to the domestic terminals, put us outside a long walk, and then a partial walk back to get to global services entry. then security claimed I was randomly selected and they wanted to wipe my cell phone. I powered it down and let them do it. I watched and all they did was wipe it with the Kleenex. I was done by 09:45. The United Club was standing room only, but the agent said Global flying business, go to the Maple Leaf Lounge which was roomy and comfortable. I worked with Rob and crew on forgejo and texted with Lucy. Without thinking, I had a small bit of chicken in a cream sauce; and this was 30 minutes before I needed to head to the gate. So I hung around the lounge for an extra twenty minutes and then headed to the gate. Despite their computer telling me that the plane was about to board, when I got to the gate the equipment wasn’t even there. At 12:35 I sat down and watched the plane arrive. We finally started boarding at 12:55.
United flight 1668 to Portland was a 737-900 in very new shape. The plane was full, but some standbys made it on. They closed the door at 13:20. Wheels were up at 13:37. I slept the entire way. We landed at 15:06. Then there was the long walk, and I was in an Uber by 15:33. The Uber came in one minute! It was very grey, foggy, with a misty drizzle, and 14c. I got home at four o’clock. There was much petting of the cat as I unpacked. She claimed Katen and Latif had not fed her the entire time I was gone.







































