Does ADSL use PPPoA?
Point-to-Point Protocol over Ethernet (PPPoE) combines PPP to the LAN link-layer protocol. The Point-to-Point Protocol over ATM (PPPoA) used in various computer or PC networkings, is mainly a two layer data-link protocol usually accustomed to connect domestic broadband modems to ISPs through phone lines.
Is MTU 1452 Good?
The MTU size includes the data payload, any transport headers (such as TCP, UDP, GRE, RTP, or ICMP), and the IP header. It is generally recommended that the MTU for a WAN interface connected to a PPPoE DSL network be 1492. However, having an MTU of 1452 is most optimal.
What should my MTU be on my router?
In most cases, the optimal value (for a home Internet router) is going to be 1500. If your router already shows an MTU value of 1500, you probably won’t be able to gain any additional benefit by performing this test.
Is ADSL PPPoE or PPPoA?
Point-to-Point Protocol over Ethernet (PPPoE) and Point-to-Point Protocol over Asynchronous Transfer Mode (PPPoA) are Internet connection types mainly used by Digital Subscriber Line (DSL) ISPs to establish Internet connection for end-users. These are used mainly for DSL and Asymmetric DSL (ADSL) services.
What should be the MTU and MSS for PPPoE?
With PPPoE, it is highly recommended to set the MTU to 1492, and MSS to 1452 even if you see no issues. With PPPoA, no tampering with MTU/MSS is necessary unless you exactly know you need it.
Is there a PPPoA for ATM aal5snap?
Aaah, yes, this is PPPoA. My example was based on a slightly different ATM AAL5 encapsulation called AAL5SNAP in which a single PVC is shared among different protocols, and individual protocols are identified by inserting a SNAP header before each packet as it is passed over the ATM PVC.
Is there an IOS command for DSL PPP?
While luckily, IOS treats DSL PPP connections as “dedicated” (i.e. neither callout nor callin), this command is ineffective, but if it ever came into effect, it would require your ISP to authenticate to you, and that would necessarily fail: did you agree on any password your ISP should use to authenticate to you? Surely not.
What’s the best size to set MTU to?
The best value for MTU is that value just before your packets get fragmented. Add 28 to the largest packet size that does not result in fragmenting the packets (since the ping command specifies the ping packet size, not including the IP/ICMP header of 28 bytes), and this is your Max MTU setting.