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OTV (Overlay Transport Virtualization)
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OpenStack ³×Æ®¿öÅ© 
VM.....¿ÜºÎ·Î PING
 - eth2: ³»ºÎ Æ®·¡ÇÈ ÀÎÅÍÆäÀ̽º

# tcpdump -nni eth2 udp
11:02:25.529361 IP 10.0.0.12.37613 > 10.0.0.8.8472: OTV, flags [I] (0x08), overlay 0, instance 35
IP 172.16.3.24 > 115.68.30.193: ICMP echo request, id 33576, seq 2, length 64
11:02:25.530380 IP 10.0.0.8.38201 > 10.0.0.12.8472: OTV, flags [I] (0x08), overlay 0, instance 35
IP 115.68.30.193 > 172.16.3.24: ICMP echo reply, id 33576, seq 2, length 64

# tcpdump -nni eth2 icmp 
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DNS ÁúÀÇ
# tcpdump -nni eth2 udp
11:10:19.179575 IP 10.0.0.12.40479 > 10.0.0.8.8472: OTV, flags [I] (0x08), overlay 0, instance 35
IP 172.16.3.24.56842 > 8.8.4.4.53: 34335+ A? chonnom.com. (29)
11:10:19.242746 IP 10.0.0.8.55003 > 10.0.0.12.8472: OTV, flags [I] (0x08), overlay 0, instance 35
IP 8.8.4.4.53 > 172.16.3.24.56842: 34335 1/0/0 A 115.68.30.193 (45)



 OTV (Overlay Transport Virtualization)
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• OTV µµ¸ÞÀΰ£ MAC TableÀÇ °øÀ¯
• MAC in IP ±â¼úÀ» ÅëÇÑ MAC Routing ±¸Çö
• H.W ±â¹ÝÀÇ ½Ç½Ã°£ Netflow Á¦°ø
• Seamless Site È®Àå ¹× Á¦°Å °¡´É

OTV

VXLAN

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