Hi everyone,   I have a problem icmp intermittent between server to server. this is topology :   I configure monitor span on  Interface Eth1/1, Eth1/2, eth1/40  Switch SF-FARM And I look something wierd, I got no response packet ICMP on received packet. The first packet in No 26250 is recieved packet or incoming packet from interface Eth1/1 Switch SF Farm, and the second packet in No. 26251 is transfer packet or outgoing packet via interface Eth1/40. Why I got no response packet? why received packet need a response?   Best regards,   William ... View more

Hi Guys, I have IP Address 10.243.128.0/17 and it's install to OSPF database like this:   CORE-SW02# show ip ospf database 10.243.128.0 detail OSPF Router with ID (10.254.255.2) (Process ID 1 VRF default) Type-7 AS External Link States (Area 0.0.0.251) LS age: 1475 Options: 0 (No TOS-capability, No Type 7/5 translation, No DC) LS Type: Type-7 AS-External Link State ID: 10.243.128.0 (Network address) Advertising Router: 10.254.255.1 LS Seq Number: 0x800003f0 Checksum: 0xbbdb Length: 36 Network Mask: /17 Metric Type: 2 (Larger than any link state path) TOS: 0 Metric: 20 Forward Address: 10.254.251.38 External Route Tag: 0   Type-5 AS External Link States LS age: 364 Options: 0x2 (No TOS-capability, No DC) LS Type: Type-5 AS-External Link State ID: 10.243.128.0 (Network address) Advertising Router: 10.254.255.1 LS Seq Number: 0x8000a438 Checksum: 0x02d7 Length: 36 Network Mask: /17 Metric Type: 2 (Larger than any link state path) TOS: 0 Metric: 20 Forward Address: 0.0.0.0 External Route Tag: 0   What I want to ask is which one the best route the router will be install to routing table? is it Type 7 or type 5 external?   Thanks. William ... View more

Hi,   I am newbie on ACI , is there any document about forwarding packet in ACI? The basic workflow in ACI, like traffic between EPG to another EPG including Encapsulation on the packet.   or anyone can explain in deep how the traffic flow in ACI with the circumstance below:   1.The traffic two endpoint with One BD, One EPG and attach on same Leaf   2.The traffic two endpoint with One BD, One EPG and attach on different Leaf   3.The traffic two endpoint with One BD, Two EPG, and attach on same Leaf   4.The traffic two endpoint with One BD, Two EPG, and attach on different Leaf   5.The traffic two endpoint with Two BD, Two EPG, and attach on same Leaf   6.The traffic two endpoint with Two BD, Two EPG, and attach on different Leaf     ... View more

I am newbie to ACI technology and still cannot get the fundamental of ACI. Anyone can explain detail, how the forwarding traffic within in ACI (between two leaf and if the endpoint on same leaf), how the packet process like encapsulate and decapsulate (tagging vxlan, vtep,etc). Please give me too datasheet or link to support the theory.   Thanks Before,   William ... View more

Anyone know where gateway/bridge domain store in ACI Fabric? Is it store on leaf or spine? is it store on where the EPG exist? ... View more