Tag: port

Dell ESRS (Dell EMC Secure Remote Services)

Now its also known as Secure Remote Services (SRS)

Requirements
Unrestricted Access to Support Center https://support.emc.com
Online Support full access account

Integrated ESRS
Ports required 443 and 8443

Centralized ESRS
Ports required 443 and 9443
Note: Never manually add or remove a Unity system from an ESRS Gateway server. Only
add or remove a storage system from a gateway server with the Unisphere ESRS configuration
wizard.

FC knowledge

FC Layers

Fibre Channel consists of the following layers:

FC-0 — The interface to the physical media
FC-1 — The encoding and decoding of data and out-of-band physical link control information for transmission over the physical media
FC-2 — The transfer of frames, sequences and exchanges comprising protocol information units.
FC-3 — Common services required for advanced features such as striping, hunt group and multicast.
FC-4 — Application interfaces that can execute over Fibre Channel such as the Fibre Channel Protocol for SCSI (FCS).

FC Ports

  • N_Port (Node port) An N_Port is typically an HBA port that connects to a switch’s F_Port or another N_Port. Nx_Port communicating through a PN_Port that is not operating a Loop Port State Machine.
  • F_Port (Fabric port) An F_Port is a switch port that is connected to an N_Port.
  • E_Port (Expansion port) Switch port that attaches to another E_Port to create an Inter-Switch Link.

Useful Nutanix CLI Commands

There are two commands for CLI acli and ncli

Acropolis Command-Line Interface (aCLI)
Acropolis provides a command-line interface for managing hosts, networks, snapshots, and VMs.

Accessing the Acropolis CLI
To access the Acropolis CLI, log on to a Controller VM in the cluster with SSH and type acli at the shell prompt.
To exit the Acropolis CLI and return to the shell, type exit at the prompt.

Nutanix Command-Line Interface (nCLI)
The Nutanix command-line interface (nCLI) allows you to run system administration commands against the Nutanix cluster from any of the following machines:

Your local machine (preferred) ncli needs to be downloaded and installed first.
Any Controller VM in the cluster

Viewing Network configuration log on to the Controller VM (CVM)

To view link speed and status
nutanix@cvm$ manage_ovs show_interfaces
name mode link speed
eth0 1000 True 1000
eth1 1000 True 1000
eth2 10000 True 10000
eth3 10000 True 10000

To show the ports and interfaces that are configured as uplinks
nutanix@cvm$ manage_ovs –bridge_name bridge show_uplinks
Bridge: br0
Bond: br0-up
bond_mode: active-backup
interfaces: eth3 eth2 eth1 eth0
lacp: off
lacp-fallback: false
lacp_speed: slow