Hi
I'm troubleshooting an issue where Bonjour/mDNS clients, particularly printers, automatically rename themselves because they think that there's another device on the network with the same name.
I have confirmed that there are no loops on the network (Aruba 2530s with loop-protect active on all switches and ports) and there are certainly no client devices with duplicate names.
The network setup is very simple. It's a small flat network with the one wireless SSID dropping wireless clients onto the same broadcast domain as the wired devices. The SSID settings are pretty much the default with ARP broadcast filtering enabled. Airgroup is on with the following settings:
airplay Enabled _airplay._tcp AirPlay
_raop._tcp
_appletv-v2._tcp
airprint Enabled _ipp._tcp AirPrint
_pdl-datastream._tcp
_printer._tcp
_scanner._tcp
_http._tcp
_http-alt._tcp
_ipp-tls._tcp
_fax-ipp._tcp
_riousbprint._tcp
_ica-networking._tcp
_ptp._tcp
_canon-bjnp1._tcp
_ipps._tcp
_ica-networking2._tcp
itunes Disabled _home-sharing._tcp iTunes
_apple-mobdev._tcp
_daap._tcp
_dacp._tcp
remotemgmt Enabled _ssh._tcp Remote management
_sftp-ssh._tcp
_ftp._tcp
_telnet._tcp
_rfb._tcp
_net-assistant._tcp
sharing Disabled _odisk._tcp Sharing
_afpovertcp._tcp
_xgrid._tcp
googlecast Disabled _googlecast._tcp GoogleCast supported by Chromecast etc
AmazonTV Disabled _amzn-wplay._tcp Amazon fire tv
Possibly related is this entry, constantly repeated, when I 'show log system' on an AP:
Oct 14 16:48:07 mdns[3768]: <343001> <ERRS> |AP US-3F-ICTRoom@192.168.10.40 mdns| 4149071872 mDNS proxy runtime error at mdns_build_pkt_rec_list 74 RR: xxx-MB-B\.RUSTAGE._ssh._tcp.local^IIN^ISRV 0 0 22 xxx-MB-BRUSTAGE-3.local ; ttl=120 too large; doesn't fit in bulk resp !
Oct 14 16:48:08 mdns[3768]: <343001> <ERRS> |AP US-3F-ICTRoom@192.168.10.40 mdns| 4149071872 mDNS proxy runtime error at mdns_build_pkt_rec_list 74 RR: US-Foyer-Photocopier._ipp._tcp.local^IIN^ITXT "txtvers=1" "qtotal=1" "rp=ipp/print" "pdl=application/postscript,image/urf,application/pdf,image/jpeg" "product=(RICOH MP C4503 PS3)" "ty=RICOH MP C4503" "note=ground-Floor" "PaperMax=<legal-A4" "priority=3
Oct 14 16:48:08 mdns[3768]: <343001> <ERRS> |AP US-3F-ICTRoom@192.168.10.40 mdns| 4149071872 mDNS proxy runtime error at mdns_build_pkt_rec_list 74 RR: Deputy\032Head-\032DL._printer._tcp.local^IIN^ITXT "txtvers=1" "qtotal=4" "rp=AUTO" "pdl=application/postscript,application/vnd.hp-PCL,application/vnd.hp-PCLXL,text/plain" "ty=HP LaserJet P2055dn" "product=(HP LaserJet P2055dn)" "priority=51" "adminurl=
Oct 14 16:48:09 mdns[3768]: <343001> <ERRS> |AP US-3F-ICTRoom@192.168.10.40 mdns| 4149071872 mDNS proxy runtime error at mdns_build_pkt_rec_list 74 RR: xxx-MB-B\.RUSTAGE._ssh._tcp.local^IIN^ISRV 0 0 22 xxx-MB-BRUSTAGE-3.local ; ttl=120 too large; doesn't fit in bulk resp !
Oct 14 16:48:10 mdns[3768]: <343001> <ERRS> |AP US-3F-ICTRoom@192.168.10.40 mdns| 4149071872 mDNS proxy runtime error at mdns_build_pkt_rec_list 74 RR: US-Foyer-Photocopier._ipp._tcp.local^IIN^ITXT "txtvers=1" "qtotal=1" "rp=ipp/print" "pdl=application/postscript,image/urf,application/pdf,image/jpeg" "product=(RICOH MP C4503 PS3)" "ty=RICOH MP C4503" "note=ground-Floor" "PaperMax=<legal-A4" "priority=3
Oct 14 16:48:10 mdns[3768]: <343001> <ERRS> |AP US-3F-ICTRoom@192.168.10.40 mdns| 4149071872 mDNS proxy runtime error at mdns_build_pkt_rec_list 74 RR: Deputy\032Head-\032DL._printer._tcp.local^IIN^ITXT "txtvers=1" "qtotal=4" "rp=AUTO" "pdl=application/postscript,application/vnd.hp-PCL,application/vnd.hp-PCLXL,text/plain" "ty=HP LaserJet P2055dn" "product=(HP LaserJet P2055dn)" "priority=51" "adminurl=
Oct 14 16:48:11 mdns[3768]: <343001> <ERRS> |AP US-3F-ICTRoom@192.168.10.40 mdns| 4149071872 mDNS proxy runtime error at mdns_build_pkt_rec_list 74 RR: xxx-MB-B\.RUSTAGE._ssh._tcp.local^IIN^ISRV 0 0 22 xxx-MB-BRUSTAGE-3.local ; ttl=120 too large; doesn't fit in bulk resp !
Oct 14 16:48:12 mdns[3768]: <343001> <ERRS> |AP US-3F-ICTRoom@192.168.10.40 mdns| 4149071872 mDNS proxy runtime error at mdns_build_pkt_rec_list 74 RR: US-Foyer-Photocopier._ipp._tcp.local^IIN^ITXT "txtvers=1" "qtotal=1" "rp=ipp/print" "pdl=application/postscript,image/urf,application/pdf,image/jpeg" "product=(RICOH MP C4503 PS3)" "ty=RICOH MP C4503" "note=ground-Floor" "PaperMax=<legal-A4" "priority=3
Oct 14 16:48:12 mdns[3768]: <343001> <ERRS> |AP US-3F-ICTRoom@192.168.10.40 mdns| 4149071872 mDNS proxy runtime error at mdns_build_pkt_rec_list 74 RR: Deputy\032Head-\032DL._printer._tcp.local^IIN^ITXT "txtvers=1" "qtotal=4" "rp=AUTO" "pdl=application/postscript,application/vnd.hp-PCL,application/vnd.hp-PCLXL,text/plain" "ty=HP LaserJet P2055dn" "product=(HP LaserJet P2055dn)" "priority=51" "adminurl=
The problem is, the issue is sporadic and doesn't seem to be reproducible and so makes it more difficult to troubleshoot.
Any suggestions very much welcomed.
Thank you