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Create BGP Neighborship with ACI with the help of vlan interface
This is very useful in a lab environment in which you could establish multiple BGP neighborship with single physical link between ACI &...

Mukesh Chanderia
Jan 7, 20242 min read


BGP Neighbourship
Let's check the output of our Nexus Switch with whom we are going to create BGP neighbourship with ACI. n9k# show run | section bgp...

Mukesh Chanderia
Jan 1, 20241 min read


Creating Endpoint (host) with the help of trunk port
Connectivity between NK9 and Leaf Port n9k# show lldp nei int eth1/25 Device ID Local Intf Hold-time Capability Port ID...

Mukesh Chanderia
Jan 1, 20242 min read


Advertise subnet from BD to Ex EPG and Route Tagging
Step 1: Let’s create AP1, BD1 & EPG1 along with the following subnets. 222.222.221.1/24 —> Advertise Externally 222.222.222.1/24 —>...

Mukesh Chanderia
Dec 29, 20232 min read


Contract Preferred Group
The requirement here is that EPG 1 – 4 should be allowed to talk to each other without any security rules, while the rest EPGs 5 - 7...

Mukesh Chanderia
Dec 17, 20231 min read


Contract with vzAny & Priority
What is vzAny? In Cisco ACI, each VRF automatically has a special object called vzAny : It represents all EPGs inside that VRF. Instead...

Mukesh Chanderia
Dec 17, 20234 min read


AAA & RBAC ACI
Default fallback login APIC GUI : apic:fallback\\admin APIC CLI : apic#fallback\\admin Step 1 : Create a TACAS+ Provider Group 2) Create...

Mukesh Chanderia
Nov 27, 20234 min read


ACI SPAN
SPAN (Switched Port Analyzer) Types of SPAN Local SPAN Support: Supported by Cisco. Functionality: Traffic is mirrored to an interface...

Mukesh Chanderia
Nov 26, 20233 min read


pcTag (zoning-rule) & Policy TCAM
Understanding pcTag in Cisco ACI 1. What is pcTag? pcTag (Policy Control Tag): A unique identifier assigned to each Endpoint Group (EPG)...

Mukesh Chanderia
Nov 21, 202310 min read


Shared Service
Shared Service Definition: A shared service, such as the Domain Name System (DNS), is utilized by multiple tenants (organizations) within...

Mukesh Chanderia
Nov 21, 20234 min read


Transit Routing in ACI
Default-export route profile with a prefix-list in the L3Out. In this scenario, the Legacy router must establish communication with the...

Mukesh Chanderia
Nov 21, 20239 min read


Certificate in ACI
Steps to Install Certificate in APIC 1) Download root & intermediate CA certificate. 2) Open root CA certificate in notepad and copy...

Mukesh Chanderia
Nov 13, 20232 min read


Syslog & Backup in ACI
Step 1: Let’s use one of the leafs with ip 10.197.205.38 as remote server (Practically it would be server in your network) Step 2: We are...

Mukesh Chanderia
Nov 13, 20231 min read


EndPoint
Endpoint Definition: An Endpoint comprises: One MAC Address Zero or More IP Addresses Traditional Network Address Tables: In...

Mukesh Chanderia
Nov 13, 202326 min read
TCPDUMP
This is a very useful tool for capturing traffic destined for the leaf, spine or APIC i.e. within fabric. This method can be used also...

Mukesh Chanderia
Nov 11, 20239 min read


Lab2: Ping Two Endpoint (Host) connected to different EPG
Step 1: Take one more host say 6.6.6.2/24 Let’s assign 6.6.6.2/24 to interface eth1/21 of NX-Sw which is directly connected to eth1/11 of...

Mukesh Chanderia
Nov 5, 20232 min read


ELAM
ELAM Packet capture: Step 1: Kindly check the hardware module to see what inputs must be there in command i.e. tah/roc/app ///...

Mukesh Chanderia
Nov 5, 20237 min read


Lab1: Ping Endpoints (Host) to Gateway
Step 1: Let’s configure Host with ip 3.3.3.1/24 As I am using Nexus Switch whose interface eth1/9 is directly connected to Leaf2 int...

Mukesh Chanderia
Nov 3, 20232 min read
Simple & Important
1) MD5 To calculate md5 checksum of file Open cmd & Go to the directory certutil -hashfile YourImageFileName.iso MD5 2) ELAM ///...

Mukesh Chanderia
Jun 24, 20231 min read


NTP in ACI
NTP uses the User Datagram Protocol (UDP) & all NTP communications use Coordinated Universal Time (UTC). NTP uses a Stratum to describe...

Mukesh Chanderia
Jun 17, 20235 min read
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