Section 8: QoS (5 Points)

  • Configure a QoS policy on R2 for traffic flowing from VLAN1 toward the rest of your network. Traffic found to have an IP precedence of 7, 5, and 1 should be limited to a maximum of 2 Mbps. Traffic above this figure with the stated precedence should be discarded. Use only one ACL to accomplish this requirement. Assume normal and excess burst sizes to both be 40000.

You are required to configure rate limiting inbound on R2 FastEthernet0/0. As you can only use one ACL to match on the precedence value, you must use a precedence mask. To match on precedence values, you must first convert these values in an 8-bit format where 00000001 is for precedence 0, 00000010 is for precedence 1, 00000100 for 2, 00001000 for 3, 00010000 ...

Get CCIE Routing and Switching Practice Labs now with the O’Reilly learning platform.

O’Reilly members experience books, live events, courses curated by job role, and more from O’Reilly and nearly 200 top publishers.