Latest posts
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Informaiton exchanged in VXLAN during MP BGP neighborship
After VTEP devices are established BGP neighbor adjacencies with other VTEPs or with internal BGP route reflector, below three pieces of information are exchanged through BGP. 1. Layer 3 VNI 2. Router MAC address 3. VTEP address
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How to get 80 Gbps of bandwidth available to UCS Servers.
Use any of the below UCS below configuration :- 1. Install 2208 IOMs, VIC1280 CNAs, fabric Extenders, and create eight vNICs mapped to each fabric. 2. Install 2204 IOMs, VIC1240 CNAs, and create four vNICs mapped to each fabric.
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Configuration failed for node sys/lsnode- due to Invalid Path Configuration,Invalid VLAN Configuration
Configuration failed for node 102 sys/lsnode-<ip> due to Invalid Path Configuration,Invalid VLAN Configuration. Above error can be due to below reasons:- 1. The “Invalid Path Configuration” fault is raised when there isn’t a Physical Domain associated to an EPG using static paths. 2. The encap VLAN configured is not within the allowed range of VLANs…
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RSTP port types
1. Backup port :- It acts as a backup for the path provided by a designated port towards the leaves of the spanning tree. 2. Disabled port :- It has no role within the operation of the spanning tree. 3. Root Port:- It provides the best path ( lowest cost) when the device forwards packets…
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IP Source Gaurd
In IP source gaurd, only on protected ports DHCP traffic is allowed and will block all the rest of the traffic. Whenever switch receives any packet, it allows only if the source is in the DHCP snopping table or static binding. IP source is a port based feature which automatically creates implicit port access control list(PACL).…
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Cisco Prime Service Catalog Definitions.
1. Initiator :- Person who places the order for a service. You are the initiator of orders you place for yourself and orders you place for others. 2. Delivery Plan :- The work flow process established by service catalog administrator to complete a service order after it has pased through the authorization and/or review stages …
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ARP types
1. ARP:- It Maps the IP(network layer) address to mac layer address to enable IP packets to be sent across the network 2. Gratuitous ARP:- It sends a request with an identical source IP address and a destination IP address to detect duplicate IP address. 3. Proxy ARP :- It Enable a device that is…
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Cisco UCS Director Orchestrator Concepts
1. Workflow :- A series of tasks arranged to automate a complex operation. It can contain at least one task, or any number of tasks as needed 2. Task :- An automatic unit of work in Cisco UCS director orchestrator. It is a single action or operation with inputs and outputs 3. Approval:- A Gate…
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ACI Terminologies
1. Bridge Domain :- Layer 2 forwarding Boundary 2. EPG:- Logical Grouping of objects that require similar policy 3. Application profile :- Logical container for grouping EPGs 4. Contracts:- Defines the communication between EPGs 5. Context:- Unique Layer 3 forwarfing and application policy domain 6. Tenants :- Logical Container for application polices :-
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ITD perquisites and important information
A. Below are the prerequisites for Intelligent Traffic Director (ITD):- 1. Enhanced Layer 2 Package license. 2. Policy Based routing 3. IP SLA B. Below feature must be enabled to configure ITD:- 1. feature itd · 2. feature pbr · 3. feature sla sender · 4. feature sla responder I Note…