Chapter 8 Management Network Connectivity

IP Addressing Scenarios

Figure 8-2 Scenario 2: CTC and ONS 15310-MA SDH Nodes Connected to Router

 

 

 

LAN A

 

 

 

 

 

 

 

 

 

 

 

 

Int "A"

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

Int "B"

 

 

 

 

 

 

 

 

 

 

CTC Workstation

Router

 

IP Address 192.168.1.100

 

 

 

IP Address of interface ìAî to LAN ìAî 192.168.1.1

 

 

 

 

Subnet Mask 255.255.255.0

 

 

 

IP Address of interface ìBî to LAN ìBî 192.168.2.1

Default Gateway = 192.168.1.1

 

 

 

Subnet Mask 255.255.255.0

 

Host Routes = N/A

 

 

 

Default Router = N/A

 

 

 

 

 

 

 

 

 

 

Host Routes = N/A

 

 

 

 

 

 

 

 

 

 

LAN B

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

ONS 15310 #2

 

 

 

 

 

 

 

 

 

IP Address 192.168.2.20

 

 

 

 

 

 

 

 

 

Subnet Mask 255.255.255.0

 

 

 

 

 

 

 

 

 

Default Router = 192.168.2.1

 

 

 

 

 

 

 

 

 

Static Routes = N/A

 

 

 

 

 

 

 

 

 

 

 

 

 

SDH RING

ONS 15310 #1

ONS 15310 #3

IP Address 192.168.2.10

IP Address 192.168.2.30

Subnet Mask 255.255.255.0

Subnet Mask 255.255.255.0

Default Router = 192.168.2.1

Default Router = 192.168.2.1

Static Routes = N/A

Static Routes = N/A

271790

8.2.3 Scenario 3: Using Proxy ARP to Enable an ONS 15310-MA SDH Gateway

ARP matches higher-level IP addresses to the physical addresses of the destination host. It uses a lookup table (called ARP cache) to perform the translation. When the address is not found in the ARP cache, a broadcast is sent out on the network with a special format called the ARP request. If one of the machines on the network recognizes its own IP address in the request, it sends an ARP reply back to the requesting host. The reply contains the physical hardware address of the receiving host. The requesting host stores this address in its ARP cache so that all subsequent datagrams (packets) to this destination IP address can be translated to a physical address.

Proxy ARP enables one LAN-connected ONS 15310-MA SDH to respond to the ARP request for ONS 15310-MA SDH nodes not connected to the LAN. (Proxy ARP requires no user configuration.) For the proxy ARP node to require no user confirmation, the DCC-connected nodes must reside on the same subnet. When a LAN device sends an ARP request to an ONS 15310-MA SDH that is not connected to the LAN, the gateway ONS 15310-MA SDH returns its MAC address to the LAN device. The LAN device then sends the datagram for the remote ONS 15310-MA SDH to the MAC address of the proxy node. The proxy ONS 15310-MA SDH uses its routing table to forward the datagram to the non-LAN ONS 15310-MA SDH.

Cisco ONS 15310-MA SDH Reference Manual, Release 9.1 and Release 9.2

8-4

78-19417-01

 

 

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Cisco Systems 15310-MA manual Lan B

15310-MA specifications

Cisco Systems has established itself as a leader in the networking domain, offering a wide array of solutions to meet the needs of modern businesses. Among its impressive product lineup are the Cisco 15310-CL and 15310-MA routers, designed to provide advanced network performance and reliability.

The Cisco 15310-CL is a versatile platform that primarily serves as a carrier-class router aimed at supporting high-speed data and voice services. It is built to handle the demands of large enterprises and service providers, offering a robust design that ensures maximum uptime and performance. One of its standout features is its modular architecture, which enables users to customize their configurations based on specific application needs. This scalability allows for future expansion without the need for a complete hardware overhaul.

Key technologies integrated into the Cisco 15310-CL include high-density Ethernet interfaces and a comprehensive suite of Layer 2 and Layer 3 protocol support. The device is capable of supporting multiple types of connections, including TDM, ATM, and Ethernet. This flexibility makes it an ideal choice for organizations that require seamless migration between various service types. Moreover, with features such as MPLS (Multiprotocol Label Switching) support and advanced Quality of Service (QoS) mechanisms, the router ensures that critical applications receive the necessary bandwidth and low latency required for optimal performance.

In contrast, the Cisco 15310-MA focuses on access solutions, providing a cost-effective entry point for businesses looking to enhance their network capabilities. It is well-suited for smaller offices or branch locations that need reliable connectivity without the expense and complexity associated with larger systems. The device supports a range of access methods and provides essential features like firewall capabilities, VPN support, and comprehensive security measures to protect sensitive data.

Both models benefit from Cisco's commitment to security and manageability, offering features like enhanced encryption protocols and user authentication mechanisms that help safeguard networks against threats. Additionally, they can be managed through Cisco’s intuitive software tools, simplifying configuration and monitoring tasks for IT administrators.

The Cisco 15310-CL and 15310-MA are ideal solutions for businesses seeking to enhance their network infrastructure, ensuring firms can keep pace with evolving technology demands while maintaining a focus on security and performance. Their combination of advanced features, modular capabilities, and robust support makes them valuable assets in the networking landscape.