Chapter 8 Management Network Connectivity

Routing Table

Table 8-4

Proxy Server Firewall Filtering Rules When the Packet is Addressed to the ONS

 

15310-MA SDH

 

 

 

 

Packets Arrive At

Accepts

Rejects

 

 

 

15310E-CTX-K9

All User Datagram Protocol (UDP)

UDP packets addressed to the

LAN port

 

 

packets except those in the

SNMP trap relay port (391)

 

 

 

Rejected column

 

 

 

 

 

 

DCC interface

 

All UDP packets

TCP packets addressed to the

 

 

All TCP packets except those

Telnet port

 

 

 

 

 

 

packets addressed to the Telnet and

TCP packets addressed to the proxy

 

 

 

SOCKS proxy server ports

server port

 

 

OSPF packets

All packets other than UDP, TCP,

 

 

Internet Control Message Protocol

OSPF, ICMP

 

 

 

 

 

 

(ICMP) packets

 

 

 

 

 

 

If you implement the proxy server, keep the following rules in mind:

1.All DCC-connected ONS 15310-MA SDH nodes on the same Ethernet segment must have the same Craft Access Only setting. Mixed values produce unpredictable results, and might leave some nodes unreachable through the shared Ethernet segment.

2.All DCC-connected ONS 15310-MA SDH nodes on the same Ethernet segment must have the same Enable Firewall setting. Mixed values produce unpredictable results. Some nodes might become unreachable.

3.If you check Enable Firewall, always check Enable Proxy. If Enable Proxy is unchecked, CTC is not able to see nodes on the DCC side of the ONS 15310-MA SDH.

4.If Craft Access Only is checked, check Enable Proxy. If Enable Proxy is not checked, CTC is not able to see nodes on the DCC side of the ONS 15310-MA SDH.

If nodes become unreachable in cases 1, 2, and 3, you can correct the setting with one of the following actions:

Disconnect the craft computer from the unreachable ONS 15310-MA SDH. Connect to the ONS 15310-MA SDH through another ONS 15310-MA SDH in the network that has a DCC connection to the unreachable node.

Disconnect the Ethernet cable from the unreachable ONS 15310-MA SDH. Connect a CTC computer directly to the ONS 15310-MA SDH.

8.3Routing Table

ONS 15310-MA SDH routing information appears on the Maintenance > Routing Table tabs. The routing table provides the following information:

Destination—Displays the IP address of the destination network or host.

Mask—Displays the subnet mask used to reach the destination host or network.

Gateway—Displays the IP address of the gateway used to reach the destination network or host.

Usage—Shows the number of times the listed route has been used.

Interface—Shows the ONS 15310-MA SDH interface used to access the destination.

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

8-16

78-19417-01

 

 

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Cisco Systems 15310-MA manual Routing Table, Packets Arrive At Accepts Rejects, OSPF, Icmp

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.