Aaron's Worthless Words

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shaping

ONT Notes - AutoQoS

* AutoQoS benefits * Automates QoS for most deployments * Protects business-critical apps to maximize availability * Simplifies QoS deployments * Reduces configuration errors * Cheaper, faster, and simpler deployments * Follows DiffServ * Allows complete control over QoS configs * Allows modification of auto-generated configs * AutoQoS phases of evolution * AutoQoS VOIP – Early version that configures the basics without

ONT Notes - Pre-classify and End-to-end QoS

* VPNs (Didn’t ISCW cover this?) * Provide * Confidentiality * Integrity * Authentication * Types * Remote-access * Client-initiated * NAS-initiated * Site-to-site * LAN-to-LAN * Extranet * L3 Tunneling protocols * GRE * IPSec * Pre-classify allows traffic to be classified before being sent across a tunnel or crypto-ed. * qos pre-classify * Provide

ONT Notes - Congestion Avoidance, Policing, Shaping, and Link Efficiency

* Tail drop drawbacks * TCP synchronization – Dropping TCP packets from different flows can cause them all to window down and back up again at the same time in cycles. * TCP starvation – Non-TCP or aggressive flows can starve everyone else out when TCP throttles back. * No differentiated drop – Tail drop doesn’t