Latest posts
-
What is glean throttling in Cisco NX-OS ?
When forwarding an incoming IP Packet in a line card, if the address resolution request for the next hop us not resolved, the line card forwards the packets to the supervisor. The supervisor resolves the MAC address for the next hop and programs the hardware. this process is known as Glean throttling.
-
What is Ceilometer?
Ceilometer is a component of the Telemetry project. Its data can be used to provide customer billing, resource tracking, and alarming capabilities across all OpenStack core components.
-
why an upstream switch should allow storage appliance port traffic?
Appliance port traffic must be allowed on uptream switches in case of below scenario:- 1. If storage must be accessed outside of the UCS domain. 2. If storage and servers are located in different subnets. 3. If storage is configured in Active/Passive mode and both fabric interconnects require communication to the same controller.
-
Shadow consumer EPG
Shadow consumer EPG is the consumer interface of an L4-L7 device places
-
ACI broder leaf – Important points
1. Any ACI leaf can be a border leaf. There is no limitation in the number of leaf switches that can be used as border leaves. 2. The border leaf can also be used to connect to compute, IP storage, and service appliances. 3. The border leaves are dedicated leaf switches that support only Layer…
-
BGP peering supports in ACI
ACI supports the following connections for BGP peering: 1. eBGP peering over OSPF 2. iBGP peering over direct connection 3. eBGP peering over direct connection 4. iBGP peering over static route
-
External Layer 3 Outside connections types in ACI
Below are the connection types for Layer 3 connection in ACI:- 1. Layer 3 Routed Interface 2. Sub-interface with 802.1Q tagging 3. Switched Virtual Interface (SVI)
-
External Layer 3 Outside connection options in ACI.
ACI supports the following External Layer 3 Outside connection options: 1. Static Routing (supported for IPv4 and IPv6) 2. OSPFv2 for normal and NSSA areas (IPv4) 3. OSPFv3 for normal and NSSA areas (IPv6) 4. iBGP (IPv4 and IPv6) 5. eBGP (IPv4 and IPv6) 6. EIGRP (IPv4 and IPv6) Important points about L3Outs in an…
-
OTV failure isolation functions
Below functions are provided by OTV to achieve failure isolation. 1. ARP optimization 2. Unknown unicast traffic suppression 3. Spanning tree isolation
-
Private VLAN port mode In nexus 9K
In nexus 9K, Private VLANs supports below port modes as follows: 1. Promiscuous. 2. Promiscuous trunk. 3. Isolated host. 4. Isolated host trunk. 5. Community host.