Posts

Assyria

Image
Fines virides colorati: Imperium Assyrium circa 1400 a.C.n. Assyria (Accadice: Assur ) fuit antiqua civitas Mesopotamiae septentrionalis inter aetates Aeneam et Ferream ad ripas Tigris) orta, quae circa saeculo 17 a. C. n. condita est et finem habuit anno 609 a.C.n. propter victoriam Babyloniae. Nomen ei datum est ab urbe nota Assyria. Index 1 Chronologia Assyriae 2 Bibliographia 3 Nexus interni 4 Nexus externi Chronologia Assyriae | Subartu, vel Assyria aetate Sumeria et Accadia. Regnum Assyrium vetus Imperium Assyrium medium (1365–934 a.C.n.) Imperium Neoassyrium (744 a.C.n.-609 a.C.n.) Athura Assyria (provincia Romana) Bibliographia | M. Dandamaev et al., "Assyria" in Encyclopaedia Iranica Online .mw-parser-output .existinglinksgray a,.mw-parser-output .existinglinksgray a:visited{color:gray}.mw-parser-output .existinglinksgray a.new{color:#ba0000}.mw-parser-output .existinglinksgray a.new:visited{color:#a55858} (Ang...

Cisco ARP cache rewrites?

Image
3 I know that the Cisco's default ARP entry expiration is 240 minutes, however how does the ARP table mechanism work when a different MAC address is seen using the same IP? In other words, if I move an IP to another device and the MAC associated with it therefore changes, isn't the ARP table on a Cisco switch going to overwrite that original ARP table entry immediately with the new MAC to IP association? Take for example computer A is using 172.17.1.20 with MAC aaaa.bbbb.cccc. I then decommission computer A and give its IP 172.17.1.20 to computer B which has a MAC of 1111.2222.3333. When the switch sees traffic from computer b using 1111.2222.3333 won't it automatically update its ARP table entry to reflect this changed MAC associated with IP 172.17.1.20? ...